openwrt/staging/blogic.git
4 years agosch_choke: avoid potential panic in choke_reset()
Eric Dumazet [Sat, 25 Apr 2020 22:19:51 +0000 (15:19 -0700)]
sch_choke: avoid potential panic in choke_reset()

If choke_init() could not allocate q->tab, we would crash later
in choke_reset().

BUG: KASAN: null-ptr-deref in memset include/linux/string.h:366 [inline]
BUG: KASAN: null-ptr-deref in choke_reset+0x208/0x340 net/sched/sch_choke.c:326
Write of size 8 at addr 0000000000000000 by task syz-executor822/7022

CPU: 1 PID: 7022 Comm: syz-executor822 Not tainted 5.7.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 __kasan_report.cold+0x5/0x4d mm/kasan/report.c:515
 kasan_report+0x33/0x50 mm/kasan/common.c:625
 check_memory_region_inline mm/kasan/generic.c:187 [inline]
 check_memory_region+0x141/0x190 mm/kasan/generic.c:193
 memset+0x20/0x40 mm/kasan/common.c:85
 memset include/linux/string.h:366 [inline]
 choke_reset+0x208/0x340 net/sched/sch_choke.c:326
 qdisc_reset+0x6b/0x520 net/sched/sch_generic.c:910
 dev_deactivate_queue.constprop.0+0x13c/0x240 net/sched/sch_generic.c:1138
 netdev_for_each_tx_queue include/linux/netdevice.h:2197 [inline]
 dev_deactivate_many+0xe2/0xba0 net/sched/sch_generic.c:1195
 dev_deactivate+0xf8/0x1c0 net/sched/sch_generic.c:1233
 qdisc_graft+0xd25/0x1120 net/sched/sch_api.c:1051
 tc_modify_qdisc+0xbab/0x1a00 net/sched/sch_api.c:1670
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5454
 netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6bf/0x7e0 net/socket.c:2362
 ___sys_sendmsg+0x100/0x170 net/socket.c:2416
 __sys_sendmsg+0xec/0x1b0 net/socket.c:2449
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295

Fixes: 77e62da6e60c ("sch_choke: drop all packets in queue during reset")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agofq_codel: fix TCA_FQ_CODEL_DROP_BATCH_SIZE sanity checks
Eric Dumazet [Sat, 25 Apr 2020 19:40:25 +0000 (12:40 -0700)]
fq_codel: fix TCA_FQ_CODEL_DROP_BATCH_SIZE sanity checks

My intent was to not let users set a zero drop_batch_size,
it seems I once again messed with min()/max().

Fixes: 9d18562a2278 ("fq_codel: add batch ability to fq_codel_drop()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/tls: Fix sk_psock refcnt leak when in tls_data_ready()
Xiyu Yang [Sat, 25 Apr 2020 13:10:23 +0000 (21:10 +0800)]
net/tls: Fix sk_psock refcnt leak when in tls_data_ready()

tls_data_ready() invokes sk_psock_get(), which returns a reference of
the specified sk_psock object to "psock" with increased refcnt.

When tls_data_ready() returns, local variable "psock" becomes invalid,
so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one exception handling path of
tls_data_ready(). When "psock->ingress_msg" is empty but "psock" is not
NULL, the function forgets to decrease the refcnt increased by
sk_psock_get(), causing a refcnt leak.

Fix this issue by calling sk_psock_put() on all paths when "psock" is
not NULL.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/x25: Fix x25_neigh refcnt leak when x25 disconnect
Xiyu Yang [Sat, 25 Apr 2020 13:06:25 +0000 (21:06 +0800)]
net/x25: Fix x25_neigh refcnt leak when x25 disconnect

x25_connect() invokes x25_get_neigh(), which returns a reference of the
specified x25_neigh object to "x25->neighbour" with increased refcnt.

When x25 connect success and returns, the reference still be hold by
"x25->neighbour", so the refcount should be decreased in
x25_disconnect() to keep refcount balanced.

The reference counting issue happens in x25_disconnect(), which forgets
to decrease the refcnt increased by x25_get_neigh() in x25_connect(),
causing a refcnt leak.

Fix this issue by calling x25_neigh_put() before x25_disconnect()
returns.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/tls: Fix sk_psock refcnt leak in bpf_exec_tx_verdict()
Xiyu Yang [Sat, 25 Apr 2020 12:54:37 +0000 (20:54 +0800)]
net/tls: Fix sk_psock refcnt leak in bpf_exec_tx_verdict()

bpf_exec_tx_verdict() invokes sk_psock_get(), which returns a reference
of the specified sk_psock object to "psock" with increased refcnt.

When bpf_exec_tx_verdict() returns, local variable "psock" becomes
invalid, so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one exception handling path of
bpf_exec_tx_verdict(). When "policy" equals to NULL but "psock" is not
NULL, the function forgets to decrease the refcnt increased by
sk_psock_get(), causing a refcnt leak.

Fix this issue by calling sk_psock_put() on this error path before
bpf_exec_tx_verdict() returns.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoaquantia: Fix the media type of AQC100 ethernet controller in the driver
Richard Clark [Sat, 25 Apr 2020 00:58:11 +0000 (08:58 +0800)]
aquantia: Fix the media type of AQC100 ethernet controller in the driver

The Aquantia AQC100 controller enables a SFP+ port, so the driver should
configure the media type as '_TYPE_FIBRE' instead of '_TYPE_TP'.

Signed-off-by: Richard Clark <richard.xnu.clark@gmail.com>
Cc: Igor Russkikh <irusskikh@marvell.com>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'vsock-virtio-fixes-about-packet-delivery-to-monitoring-devices'
David S. Miller [Mon, 27 Apr 2020 17:18:01 +0000 (10:18 -0700)]
Merge branch 'vsock-virtio-fixes-about-packet-delivery-to-monitoring-devices'

Stefano Garzarella says:

====================
vsock/virtio: fixes about packet delivery to monitoring devices

During the review of v1, Stefan pointed out an issue introduced by
that patch, where replies can appear in the packet capture before
the transmitted packet.

While fixing my patch, reverting it and adding a new flag in
'struct virtio_vsock_pkt' (patch 2/2), I found that we already had
that issue in vhost-vsock, so I fixed it (patch 1/2).

v1 -> v2:
- reverted the v1 patch, to avoid that replies can appear in the
  packet capture before the transmitted packet [Stefan]
- added patch to fix packet delivering to monitoring devices in
  vhost-vsock
- added patch to check if the packet is already delivered to
  monitoring devices

v1: https://patchwork.ozlabs.org/project/netdev/patch/20200421092527.41651-1-sgarzare@redhat.com/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovsock/virtio: fix multiple packet delivery to monitoring devices
Stefano Garzarella [Fri, 24 Apr 2020 15:08:30 +0000 (17:08 +0200)]
vsock/virtio: fix multiple packet delivery to monitoring devices

In virtio_transport.c, if the virtqueue is full, the transmitting
packet is queued up and it will be sent in the next iteration.
This causes the same packet to be delivered multiple times to
monitoring devices.

We want to continue to deliver packets to monitoring devices before
it is put in the virtqueue, to avoid that replies can appear in the
packet capture before the transmitted packet.

This patch fixes the issue, adding a new flag (tap_delivered) in
struct virtio_vsock_pkt, to check if the packet is already delivered
to monitoring devices.

In vhost/vsock.c, we are splitting packets, so we must set
'tap_delivered' to false when we queue up the same virtio_vsock_pkt
to handle the remaining bytes.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovhost/vsock: fix packet delivery order to monitoring devices
Stefano Garzarella [Fri, 24 Apr 2020 15:08:29 +0000 (17:08 +0200)]
vhost/vsock: fix packet delivery order to monitoring devices

We want to deliver packets to monitoring devices before it is
put in the virtqueue, to avoid that replies can appear in the
packet capture before the transmitted packet.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: remove obsolete comment
Eric Dumazet [Sat, 25 Apr 2020 01:39:29 +0000 (18:39 -0700)]
net: remove obsolete comment

Commit b656722906ef ("net: Increase the size of skb_frag_t")
removed the 16bit limitation of a frag on some 32bit arches.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomptcp: fix race in msk status update
Paolo Abeni [Fri, 24 Apr 2020 11:15:21 +0000 (13:15 +0200)]
mptcp: fix race in msk status update

Currently subflow_finish_connect() changes unconditionally
any msk socket status other than TCP_ESTABLISHED.

If an unblocking connect() races with close(), we can end-up
triggering:

IPv4: Attempt to release TCP socket in state 1 00000000e32b8b7e

when the msk socket is disposed.

Be sure to enter the established status only from SYN_SENT.

Fixes: c3c123d16c0e ("net: mptcp: don't hang in mptcp_sendmsg() after TCP fallback")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...
Linus Torvalds [Sat, 25 Apr 2020 19:25:32 +0000 (12:25 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace

Pull pid leak fix from Eric Biederman:
 "Oleg noticed that put_pid(thread_pid) was not getting called when proc
  was not compiled in.

  Let's get that fixed before 5.7 is released and causes problems for
  anyone"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  proc: Put thread_pid in release_task not proc_flush_pid

4 years agoMerge tag 'timers-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 25 Apr 2020 19:16:48 +0000 (12:16 -0700)]
Merge tag 'timers-urgent-2020-04-25' of git://git./linux/kernel/git/tip/tip

Pull timer fixlet from Ingo Molnar:
 "A single fix for a comment that may show up in DocBook output"

* tag 'timers-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  vdso/datapage: Use correct clock mode name in comment

4 years agoMerge tag 'sched-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 25 Apr 2020 19:11:47 +0000 (12:11 -0700)]
Merge tag 'sched-urgent-2020-04-25' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Misc fixes:

   - an uclamp accounting fix

   - three frequency invariance fixes and a readability improvement"

* tag 'sched-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/core: Fix reset-on-fork from RT with uclamp
  x86, sched: Move check for CPU type to caller function
  x86, sched: Don't enable static key when starting secondary CPUs
  x86, sched: Account for CPUs with less than 4 cores in freq. invariance
  x86, sched: Bail out of frequency invariance if base frequency is unknown

4 years agoMerge tag 'perf-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 25 Apr 2020 19:08:24 +0000 (12:08 -0700)]
Merge tag 'perf-urgent-2020-04-25' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Two changes:

   - fix exit event records

   - extend x86 PMU driver enumeration to add Intel Jasper Lake CPU
     support"

* tag 'perf-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: fix parent pid/tid in task exit events
  perf/x86/cstate: Add Jasper Lake CPU support

4 years agoMerge tag 'objtool-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 25 Apr 2020 18:52:02 +0000 (11:52 -0700)]
Merge tag 'objtool-urgent-2020-04-25' of git://git./linux/kernel/git/tip/tip

Pull objtool fixes from Ingo Molnar:
 "Two fixes: fix an off-by-one bug, and fix 32-bit builds on 64-bit
  systems"

* tag 'objtool-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix off-by-one in symbol_by_offset()
  objtool: Fix 32bit cross builds

4 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Sat, 25 Apr 2020 02:17:30 +0000 (19:17 -0700)]
Merge git://git./linux/kernel/git/netdev/net

Pull networking fixes from David Miller:

 1) Fix memory leak in netfilter flowtable, from Roi Dayan.

 2) Ref-count leaks in netrom and tipc, from Xiyu Yang.

 3) Fix warning when mptcp socket is never accepted before close, from
    Florian Westphal.

 4) Missed locking in ovs_ct_exit(), from Tonghao Zhang.

 5) Fix large delays during PTP synchornization in cxgb4, from Rahul
    Lakkireddy.

 6) team_mode_get() can hang, from Taehee Yoo.

 7) Need to use kvzalloc() when allocating fw tracer in mlx5 driver,
    from Niklas Schnelle.

 8) Fix handling of bpf XADD on BTF memory, from Jann Horn.

 9) Fix BPF_STX/BPF_B encoding in x86 bpf jit, from Luke Nelson.

10) Missing queue memory release in iwlwifi pcie code, from Johannes
    Berg.

11) Fix NULL deref in macvlan device event, from Taehee Yoo.

12) Initialize lan87xx phy correctly, from Yuiko Oshino.

13) Fix looping between VRF and XFRM lookups, from David Ahern.

14) etf packet scheduler assumes all sockets are full sockets, which is
    not necessarily true. From Eric Dumazet.

15) Fix mptcp data_fin handling in RX path, from Paolo Abeni.

16) fib_select_default() needs to handle nexthop objects, from David
    Ahern.

17) Use GFP_ATOMIC under spinlock in mac80211_hwsim, from Wei Yongjun.

18) vxlan and geneve use wrong nlattr array, from Sabrina Dubroca.

19) Correct rx/tx stats in bcmgenet driver, from Doug Berger.

20) BPF_LDX zero-extension is encoded improperly in x86_32 bpf jit, fix
    from Luke Nelson.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (100 commits)
  selftests/bpf: Fix a couple of broken test_btf cases
  tools/runqslower: Ensure own vmlinux.h is picked up first
  bpf: Make bpf_link_fops static
  bpftool: Respect the -d option in struct_ops cmd
  selftests/bpf: Add test for freplace program with expected_attach_type
  bpf: Propagate expected_attach_type when verifying freplace programs
  bpf: Fix leak in LINK_UPDATE and enforce empty old_prog_fd
  bpf, x86_32: Fix logic error in BPF_LDX zero-extension
  bpf, x86_32: Fix clobbering of dst for BPF_JSET
  bpf, x86_32: Fix incorrect encoding in BPF_LDX zero-extension
  bpf: Fix reStructuredText markup
  net: systemport: suppress warnings on failed Rx SKB allocations
  net: bcmgenet: suppress warnings on failed Rx SKB allocations
  macsec: avoid to set wrong mtu
  mac80211: sta_info: Add lockdep condition for RCU list usage
  mac80211: populate debugfs only after cfg80211 init
  net: bcmgenet: correct per TX/RX ring statistics
  net: meth: remove spurious copyright text
  net: phy: bcm84881: clear settings on link down
  chcr: Fix CPU hard lockup
  ...

4 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
David S. Miller [Sat, 25 Apr 2020 01:26:14 +0000 (18:26 -0700)]
Merge git://git./pub/scm/linux/kernel/git/bpf/bpf

Alexei Starovoitov says:

====================
pull-request: bpf 2020-04-24

The following pull-request contains BPF updates for your *net* tree.

We've added 17 non-merge commits during the last 5 day(s) which contain
a total of 19 files changed, 203 insertions(+), 85 deletions(-).

The main changes are:

1) link_update fix, from Andrii.

2) libbpf get_xdp_id fix, from David.

3) xadd verifier fix, from Jann.

4) x86-32 JIT fixes, from Luke and Wang.

5) test_btf fix, from Stanislav.

6) freplace verifier fix, from Toke.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoselftests/bpf: Fix a couple of broken test_btf cases
Stanislav Fomichev [Wed, 22 Apr 2020 00:37:53 +0000 (17:37 -0700)]
selftests/bpf: Fix a couple of broken test_btf cases

Commit 51c39bb1d5d1 ("bpf: Introduce function-by-function verification")
introduced function linkage flag and changed the error message from
"vlen != 0" to "Invalid func linkage" and broke some fake BPF programs.

Adjust the test accordingly.

AFACT, the programs don't really need any arguments and only look
at BTF for maps, so let's drop the args altogether.

Before:
BTF raw test[103] (func (Non zero vlen)): do_test_raw:3703:FAIL expected
err_str:vlen != 0
magic: 0xeb9f
version: 1
flags: 0x0
hdr_len: 24
type_off: 0
type_len: 72
str_off: 72
str_len: 10
btf_total_size: 106
[1] INT (anon) size=4 bits_offset=0 nr_bits=32 encoding=SIGNED
[2] INT (anon) size=4 bits_offset=0 nr_bits=32 encoding=(none)
[3] FUNC_PROTO (anon) return=0 args=(1 a, 2 b)
[4] FUNC func type_id=3 Invalid func linkage

BTF libbpf test[1] (test_btf_haskv.o): libbpf: load bpf program failed:
Invalid argument
libbpf: -- BEGIN DUMP LOG ---
libbpf:
Validating test_long_fname_2() func#1...
Arg#0 type PTR in test_long_fname_2() is not supported yet.
processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0
peak_states 0 mark_read 0

libbpf: -- END LOG --
libbpf: failed to load program 'dummy_tracepoint'
libbpf: failed to load object 'test_btf_haskv.o'
do_test_file:4201:FAIL bpf_object__load: -4007
BTF libbpf test[2] (test_btf_newkv.o): libbpf: load bpf program failed:
Invalid argument
libbpf: -- BEGIN DUMP LOG ---
libbpf:
Validating test_long_fname_2() func#1...
Arg#0 type PTR in test_long_fname_2() is not supported yet.
processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0
peak_states 0 mark_read 0

libbpf: -- END LOG --
libbpf: failed to load program 'dummy_tracepoint'
libbpf: failed to load object 'test_btf_newkv.o'
do_test_file:4201:FAIL bpf_object__load: -4007
BTF libbpf test[3] (test_btf_nokv.o): libbpf: load bpf program failed:
Invalid argument
libbpf: -- BEGIN DUMP LOG ---
libbpf:
Validating test_long_fname_2() func#1...
Arg#0 type PTR in test_long_fname_2() is not supported yet.
processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0
peak_states 0 mark_read 0

libbpf: -- END LOG --
libbpf: failed to load program 'dummy_tracepoint'
libbpf: failed to load object 'test_btf_nokv.o'
do_test_file:4201:FAIL bpf_object__load: -4007

Fixes: 51c39bb1d5d1 ("bpf: Introduce function-by-function verification")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200422003753.124921-1-sdf@google.com
4 years agotools/runqslower: Ensure own vmlinux.h is picked up first
Andrii Nakryiko [Wed, 22 Apr 2020 01:24:07 +0000 (18:24 -0700)]
tools/runqslower: Ensure own vmlinux.h is picked up first

Reorder include paths to ensure that runqslower sources are picking up
vmlinux.h, generated by runqslower's own Makefile. When runqslower is built
from selftests/bpf, due to current -I$(BPF_INCLUDE) -I$(OUTPUT) ordering, it
might pick up not-yet-complete vmlinux.h, generated by selftests Makefile,
which could lead to compilation errors like [0]. So ensure that -I$(OUTPUT)
goes first and rely on runqslower's Makefile own dependency chain to ensure
vmlinux.h is properly completed before source code relying on it is compiled.

  [0] https://travis-ci.org/github/libbpf/libbpf/jobs/677905925

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200422012407.176303-1-andriin@fb.com
4 years agobpf: Make bpf_link_fops static
Zou Wei [Thu, 23 Apr 2020 02:32:40 +0000 (10:32 +0800)]
bpf: Make bpf_link_fops static

Fix the following sparse warning:

kernel/bpf/syscall.c:2289:30: warning: symbol 'bpf_link_fops' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/1587609160-117806-1-git-send-email-zou_wei@huawei.com
4 years agobpftool: Respect the -d option in struct_ops cmd
Martin KaFai Lau [Fri, 24 Apr 2020 18:29:11 +0000 (11:29 -0700)]
bpftool: Respect the -d option in struct_ops cmd

In the prog cmd, the "-d" option turns on the verifier log.
This is missed in the "struct_ops" cmd and this patch fixes it.

Fixes: 65c93628599d ("bpftool: Add struct_ops support")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20200424182911.1259355-1-kafai@fb.com
4 years agoselftests/bpf: Add test for freplace program with expected_attach_type
Toke Høiland-Jørgensen [Fri, 24 Apr 2020 13:34:28 +0000 (15:34 +0200)]
selftests/bpf: Add test for freplace program with expected_attach_type

This adds a new selftest that tests the ability to attach an freplace
program to a program type that relies on the expected_attach_type of the
target program to pass verification.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/158773526831.293902.16011743438619684815.stgit@toke.dk
4 years agobpf: Propagate expected_attach_type when verifying freplace programs
Toke Høiland-Jørgensen [Fri, 24 Apr 2020 13:34:27 +0000 (15:34 +0200)]
bpf: Propagate expected_attach_type when verifying freplace programs

For some program types, the verifier relies on the expected_attach_type of
the program being verified in the verification process. However, for
freplace programs, the attach type was not propagated along with the
verifier ops, so the expected_attach_type would always be zero for freplace
programs.

This in turn caused the verifier to sometimes make the wrong call for
freplace programs. For all existing uses of expected_attach_type for this
purpose, the result of this was only false negatives (i.e., freplace
functions would be rejected by the verifier even though they were valid
programs for the target they were replacing). However, should a false
positive be introduced, this can lead to out-of-bounds accesses and/or
crashes.

The fix introduced in this patch is to propagate the expected_attach_type
to the freplace program during verification, and reset it after that is
done.

Fixes: be8704ff07d2 ("bpf: Introduce dynamic program extensions")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/158773526726.293902.13257293296560360508.stgit@toke.dk
4 years agobpf: Fix leak in LINK_UPDATE and enforce empty old_prog_fd
Andrii Nakryiko [Fri, 24 Apr 2020 05:20:44 +0000 (22:20 -0700)]
bpf: Fix leak in LINK_UPDATE and enforce empty old_prog_fd

Fix bug of not putting bpf_link in LINK_UPDATE command.
Also enforce zeroed old_prog_fd if no BPF_F_REPLACE flag is specified.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200424052045.4002963-1-andriin@fb.com
4 years agobpf, x86_32: Fix logic error in BPF_LDX zero-extension
Wang YanQing [Thu, 23 Apr 2020 05:06:37 +0000 (13:06 +0800)]
bpf, x86_32: Fix logic error in BPF_LDX zero-extension

When verifier_zext is true, we don't need to emit code
for zero-extension.

Fixes: 836256bf5f37 ("x32: bpf: eliminate zero extension code-gen")
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200423050637.GA4029@udknight
4 years agobpf, x86_32: Fix clobbering of dst for BPF_JSET
Luke Nelson [Wed, 22 Apr 2020 17:36:30 +0000 (10:36 -0700)]
bpf, x86_32: Fix clobbering of dst for BPF_JSET

The current JIT clobbers the destination register for BPF_JSET BPF_X
and BPF_K by using "and" and "or" instructions. This is fine when the
destination register is a temporary loaded from a register stored on
the stack but not otherwise.

This patch fixes the problem (for both BPF_K and BPF_X) by always loading
the destination register into temporaries since BPF_JSET should not
modify the destination register.

This bug may not be currently triggerable as BPF_REG_AX is the only
register not stored on the stack and the verifier uses it in a limited
way.

Fixes: 03f5781be2c7b ("bpf, x86_32: add eBPF JIT compiler for ia32")
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luke Nelson <luke.r.nels@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Wang YanQing <udknight@gmail.com>
Link: https://lore.kernel.org/bpf/20200422173630.8351-2-luke.r.nels@gmail.com
4 years agobpf, x86_32: Fix incorrect encoding in BPF_LDX zero-extension
Luke Nelson [Wed, 22 Apr 2020 17:36:29 +0000 (10:36 -0700)]
bpf, x86_32: Fix incorrect encoding in BPF_LDX zero-extension

The current JIT uses the following sequence to zero-extend into the
upper 32 bits of the destination register for BPF_LDX BPF_{B,H,W},
when the destination register is not on the stack:

  EMIT3(0xC7, add_1reg(0xC0, dst_hi), 0);

The problem is that C7 /0 encodes a MOV instruction that requires a 4-byte
immediate; the current code emits only 1 byte of the immediate. This
means that the first 3 bytes of the next instruction will be treated as
the rest of the immediate, breaking the stream of instructions.

This patch fixes the problem by instead emitting "xor dst_hi,dst_hi"
to clear the upper 32 bits. This fixes the problem and is more efficient
than using MOV to load a zero immediate.

This bug may not be currently triggerable as BPF_REG_AX is the only
register not stored on the stack and the verifier uses it in a limited
way, and the verifier implements a zero-extension optimization. But the
JIT should avoid emitting incorrect encodings regardless.

Fixes: 03f5781be2c7b ("bpf, x86_32: add eBPF JIT compiler for ia32")
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luke Nelson <luke.r.nels@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Acked-by: Wang YanQing <udknight@gmail.com>
Link: https://lore.kernel.org/bpf/20200422173630.8351-1-luke.r.nels@gmail.com
4 years agobpf: Fix reStructuredText markup
Jakub Wilk [Wed, 22 Apr 2020 08:23:24 +0000 (10:23 +0200)]
bpf: Fix reStructuredText markup

The patch fixes:
$ scripts/bpf_helpers_doc.py > bpf-helpers.rst
$ rst2man bpf-helpers.rst > bpf-helpers.7
bpf-helpers.rst:1105: (WARNING/2) Inline strong start-string without end-string.

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20200422082324.2030-1-jwilk@jwilk.net
4 years agonet: systemport: suppress warnings on failed Rx SKB allocations
Doug Berger [Thu, 23 Apr 2020 23:13:30 +0000 (16:13 -0700)]
net: systemport: suppress warnings on failed Rx SKB allocations

The driver is designed to drop Rx packets and reclaim the buffers
when an allocation fails, and the network interface needs to safely
handle this packet loss. Therefore, an allocation failure of Rx
SKBs is relatively benign.

However, the output of the warning message occurs with a high
scheduling priority that can cause excessive jitter/latency for
other high priority processing.

This commit suppresses the warning messages to prevent scheduling
problems while retaining the failure count in the statistics of
the network interface.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: bcmgenet: suppress warnings on failed Rx SKB allocations
Doug Berger [Thu, 23 Apr 2020 23:02:11 +0000 (16:02 -0700)]
net: bcmgenet: suppress warnings on failed Rx SKB allocations

The driver is designed to drop Rx packets and reclaim the buffers
when an allocation fails, and the network interface needs to safely
handle this packet loss. Therefore, an allocation failure of Rx
SKBs is relatively benign.

However, the output of the warning message occurs with a high
scheduling priority that can cause excessive jitter/latency for
other high priority processing.

This commit suppresses the warning messages to prevent scheduling
problems while retaining the failure count in the statistics of
the network interface.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomacsec: avoid to set wrong mtu
Taehee Yoo [Thu, 23 Apr 2020 13:40:47 +0000 (13:40 +0000)]
macsec: avoid to set wrong mtu

When a macsec interface is created, the mtu is calculated with the lower
interface's mtu value.
If the mtu of lower interface is lower than the length, which is needed
by macsec interface, macsec's mtu value will be overflowed.
So, if the lower interface's mtu is too low, macsec interface's mtu
should be set to 0.

Test commands:
    ip link add dummy0 mtu 10 type dummy
    ip link add macsec0 link dummy0 type macsec
    ip link show macsec0

Before:
    11: macsec0@dummy0: <BROADCAST,MULTICAST,M-DOWN> mtu 4294967274
After:
    11: macsec0@dummy0: <BROADCAST,MULTICAST,M-DOWN> mtu 0

Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 24 Apr 2020 23:23:24 +0000 (16:23 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two minor fixes: one to update a Kconfig reference and the other to
  fix a resource leak on an error path in sg"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: Update referenced link to cdrtools
  scsi: sg: add sg_remove_request in sg_write

4 years agoproc: Put thread_pid in release_task not proc_flush_pid
Eric W. Biederman [Fri, 24 Apr 2020 20:41:20 +0000 (15:41 -0500)]
proc: Put thread_pid in release_task not proc_flush_pid

Oleg pointed out that in the unlikely event the kernel is compiled
with CONFIG_PROC_FS unset that release_task will now leak the pid.

Move the put_pid out of proc_flush_pid into release_task to fix this
and to guarantee I don't make that mistake again.

When possible it makes sense to keep get and put in the same function
so it can easily been seen how they pair up.

Fixes: 7bc3e6e55acf ("proc: Use a list of inodes to flush from proc")
Reported-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
4 years agoMerge tag 'pm-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 24 Apr 2020 20:43:37 +0000 (13:43 -0700)]
Merge tag 'pm-5.7-rc3' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "Restore an optimization related to asynchronous suspend and resume of
  devices during system-wide power transitions that was disabled by
  mistake (Kai-Heng Feng) and update the pm-graph suite of power
  management utilities (Todd Brandt)"

* tag 'pm-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: sleep: core: Switch back to async_schedule_dev()
  pm-graph v5.6

4 years agoMerge tag 'pnp-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 24 Apr 2020 20:41:29 +0000 (13:41 -0700)]
Merge tag 'pnp-5.7-rc3' of git://git./linux/kernel/git/rafael/linux-pm

Pull PNP cleanup from Rafael Wysocki:
 "Make the PNP code use list_for_each_entry() in a few places instead of
  open-coding it (Jason Gunthorpe)"

* tag 'pnp-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  pnp: Use list_for_each_entry() instead of open coding

4 years agoMerge tag 'acpi-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 24 Apr 2020 20:37:19 +0000 (13:37 -0700)]
Merge tag 'acpi-5.7-rc3' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "Drop a lid status quirk for Asus T200TA that is not necessary any more
  and clean up a resource management inconsistency in the PCI IRQ link
  configuration code.

  Both changes from Hans de Goede"

* tag 'acpi-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: button: Drop no longer necessary Asus T200TA lid_init_state quirk
  ACPI/PCI: pci_link: use extended_irq union member when setting ext-irq shareable

4 years agomm: check that mm is still valid in madvise()
Linus Torvalds [Fri, 24 Apr 2020 18:10:58 +0000 (11:10 -0700)]
mm: check that mm is still valid in madvise()

IORING_OP_MADVISE can end up basically doing mprotect() on the VM of
another process, which means that it can race with our crazy core dump
handling which accesses the VM state without holding the mmap_sem
(because it incorrectly thinks that it is the final user).

This is clearly a core dumping problem, but we've never fixed it the
right way, and instead have the notion of "check that the mm is still
ok" using mmget_still_valid() after getting the mmap_sem for writing in
any situation where we're not the original VM thread.

See commit 04f5866e41fb ("coredump: fix race condition between
mmget_not_zero()/get_task_mm() and core dumping") for more background on
this whole mmget_still_valid() thing.  You might want to have a barf bag
handy when you do.

We're discussing just fixing this properly in the only remaining core
dumping routines.  But even if we do that, let's make do_madvise() do
the right thing, and then when we fix core dumping, we can remove all
these mmget_still_valid() checks.

Reported-and-tested-by: Jann Horn <jannh@google.com>
Fixes: c1ca757bd6f4 ("io_uring: add IORING_OP_MADVISE")
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
4 years agoMerge tag 'mac80211-for-net-2020-04-24' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Fri, 24 Apr 2020 20:17:01 +0000 (13:17 -0700)]
Merge tag 'mac80211-for-net-2020-04-24' of git://git./linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Just three changes:
 * fix a wrong GFP_KERNEL in hwsim
 * fix the debugfs mess after the mac80211 registration race fix
 * suppress false-positive RCU list lockdep warnings
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge tag 'wireless-drivers-2020-04-24' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Fri, 24 Apr 2020 20:14:05 +0000 (13:14 -0700)]
Merge tag 'wireless-drivers-2020-04-24' of git://git./linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for v5.7

Second set of fixes for v5.7. Quite a few iwlwifi fixes and some
maintainers file updates.

iwlwifi

* fix a bug with kmemdup() error handling

* fix a DMA pool warning about unfreed memory

* fix beacon statistics

* fix a theoritical bug in device initialisation

* fix queue limit handling and inactive TID removal

* disable ACK Enabled Aggregation which was enabled by accident

* fix transmit power setting reading from BIOS with certain versions
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge tag 'io_uring-5.7-2020-04-24' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 24 Apr 2020 19:58:22 +0000 (12:58 -0700)]
Merge tag 'io_uring-5.7-2020-04-24' of git://git.kernel.dk/linux-block

Pull io_uring fix from Jens Axboe:
 "Single fixup for a change that went into -rc2"

* tag 'io_uring-5.7-2020-04-24' of git://git.kernel.dk/linux-block:
  io_uring: only restore req->work for req that needs do completion

4 years agoMerge tag 'libata-5.7-2020-04-24' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 24 Apr 2020 19:54:13 +0000 (12:54 -0700)]
Merge tag 'libata-5.7-2020-04-24' of git://git.kernel.dk/linux-block

Pull libata fixlet from Jens Axboe:
 "Minor spelling error fix for libata"

* tag 'libata-5.7-2020-04-24' of git://git.kernel.dk/linux-block:
  ata: sata_inic162x fix a spelling issue

4 years agoMerge tag 'block-5.7-2020-04-24' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 24 Apr 2020 19:44:19 +0000 (12:44 -0700)]
Merge tag 'block-5.7-2020-04-24' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes/changes that should go into this release:

   - null_blk zoned fixes (Damien)

   - blkdev_close() sync improvement (Douglas)

   - Fix regression in blk-iocost that impacted (at least) systemtap
     (Waiman)

   - Comment fix, header removal (Zhiqiang, Jianpeng)"

* tag 'block-5.7-2020-04-24' of git://git.kernel.dk/linux-block:
  null_blk: Cleanup zoned device initialization
  null_blk: Fix zoned command handling
  block: remove unused header
  blk-iocost: Fix error on iocost_ioc_vrate_adj
  bdev: Reduce time holding bd_mutex in sync in blkdev_close()
  buffer: remove useless comment and WB_REASON_FREE_MORE_MEM, reason.

4 years agoMerge tag 'trace-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 24 Apr 2020 19:39:21 +0000 (12:39 -0700)]
Merge tag 'trace-v5.7-rc2' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "A few tracing fixes:

   - Two fixes for memory leaks detected by kmemleak

   - Removal of some dead code

   - A few local functions turned static"

* tag 'trace-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Convert local functions in tracing_map.c to static
  tracing: Remove DECLARE_TRACE_NOARGS
  ftrace: Fix memory leak caused by not freeing entry in unregister_ftrace_direct()
  tracing: Fix memory leaks in trace_events_hist.c

4 years agoMerge branch 'acpi-pci'
Rafael J. Wysocki [Fri, 24 Apr 2020 19:03:57 +0000 (21:03 +0200)]
Merge branch 'acpi-pci'

* acpi-pci:
  ACPI/PCI: pci_link: use extended_irq union member when setting ext-irq shareable

4 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 24 Apr 2020 18:34:43 +0000 (11:34 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Ensure context synchronisation after a write to APIAKey.

 - Fix bullet list formatting in Documentation/arm64/amu.rst to
   eliminate doc warnings.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Documentation: arm64: fix amu.rst doc warnings
  arm64: sync kernel APIAKey when installing

4 years agoMerge branch 'pm-tools'
Rafael J. Wysocki [Fri, 24 Apr 2020 18:34:36 +0000 (20:34 +0200)]
Merge branch 'pm-tools'

* pm-tools:
  pm-graph v5.6

4 years agoMerge tag 'kbuild-fixes-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahi...
Linus Torvalds [Fri, 24 Apr 2020 17:39:32 +0000 (10:39 -0700)]
Merge tag 'kbuild-fixes-v5.7' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - fix scripts/config to properly handle ':' in string type CONFIG
   options

 - fix unneeded rebuilds of DT schema check rule

 - git rid of ordering dependency between <linux/vermagic.h> and
   <linux/module.h> to fix build errors in some network drivers

 - clean up generated headers of host arch with 'make ARCH=um mrproper'

* tag 'kbuild-fixes-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  h8300: ignore vmlinux.lds
  Documentation: kbuild: fix the section title format
  um: ensure `make ARCH=um mrproper` removes arch/$(SUBARCH)/include/generated/
  arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>
  kbuild: fix DT binding schema rule again to avoid needless rebuilds
  scripts/config: allow colons in option strings for sed

4 years agoMerge tag 'afs-fixes-20200424' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowe...
Linus Torvalds [Fri, 24 Apr 2020 17:32:40 +0000 (10:32 -0700)]
Merge tag 'afs-fixes-20200424' of git://git./linux/kernel/git/dhowells/linux-fs

Pull misc AFS fixes from David Howells:
 "Three miscellaneous fixes to the afs filesystem:

   - Remove some struct members that aren't used, aren't set or aren't
     read, plus a wake up that nothing ever waits for.

   - Actually set the AFS_SERVER_FL_HAVE_EPOCH flag so that the code
     that depends on it can work.

   - Make a couple of waits uninterruptible if they're done for an
     operation that isn't supposed to be interruptible"

* tag 'afs-fixes-20200424' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Make record checking use TASK_UNINTERRUPTIBLE when appropriate
  afs: Fix to actually set AFS_SERVER_FL_HAVE_EPOCH
  afs: Remove some unused bits

4 years agoMerge tag 'sound-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 24 Apr 2020 17:27:43 +0000 (10:27 -0700)]
Merge tag 'sound-5.7-rc3' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This became a slightly big pull request, as the accumulated ASoC fixes
  are included here. Some highlights:

   - Revert of ASoC DAI startup changes that caused regression on some
     x86 platforms

   - Regression fix in HD-audio power management and driver blacklist

   - A collection of ASoC DAPM and topology fixes

   - Continued USB-audio fixes and quirks

   - Lots of small device-specific fixes

   - Rockchip S/PDIF DT stuff update for validation issues"

* tag 'sound-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (51 commits)
  ALSA: hda: Always use jackpoll helper for jack update after resume
  ALSA: hda/realtek - Add new codec supported for ALC245
  ALSA: usb-audio: Fix usb audio refcnt leak when getting spdif
  ALSA: usb-audio: Add connector notifier delegation
  ALSA: usb-audio: Apply async workaround for Scarlett 2i4 2nd gen
  ASoC: wm8960: Fix wrong clock after suspend & resume
  ALSA: usx2y: Fix potential NULL dereference
  ALSA: usb-audio: Add quirk for Focusrite Scarlett 2i2
  ASoC: wm89xx: Add missing dependency
  ASoC: dapm: fixup dapm kcontrol widget
  ASoC: rsnd: Fix "status check failed" spam for multi-SSI
  ASoC: rsnd: Don't treat master SSI in multi SSI setup as parent
  ASoC: meson: gx-card: fix codec-to-codec link setup
  ASoC: meson: axg-card: fix codec-to-codec link setup
  ALSA: usb-audio: Add static mapping table for ALC1220-VB-based mobos
  ALSA: hda: Remove ASUS ROG Zenith from the blacklist
  ALSA: hda/realtek - Fix unexpected init_amp override
  ALSA: usb-audio: Filter out unsupported sample rates on Focusrite devices
  ASoC: SOF: Intel: add min/max channels for SSP on Baytrail/Broadwell
  ASoC: stm32: sai: fix sai probe
  ...

4 years agoMerge tag 'drm-fixes-2020-04-24' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 24 Apr 2020 17:20:08 +0000 (10:20 -0700)]
Merge tag 'drm-fixes-2020-04-24' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Weekly regular fixes for drm, The usual rc3 uptick here, but nothing
  too crazy or notable.

  core:
   - mst: zero pbn when releasing vcpi slots

  amdgpu:
   - Fix resume issue on renoir
   - Thermal fix for older CI dGPUs
   - Fix some fallout from dropping drm load/unload callbacks

  i915:
   - Tigerlake Workaround - disabling media recompression (Matt)
   - Fix RPS interrupts for right GPU frequency (Chris)
   - HDCP fix prime check (Oliver)
   - Tigerlake Thunderbolt power well fix (Matt)
   - Tigerlake DP link training fixes (Jose)
   - Documentation sphinx build fix (Jani)
   - Fix enable_dpcd_backlight modparam (Lyude)

  analogix-dp:
   - binding fix

  meson:
   - remove unneeded error message

  bindings:
   - fix warnings
   - fix lvds binding

  scheduler:
   - thread racing fix

  tidss:
   - use after free fix"

* tag 'drm-fixes-2020-04-24' of git://anongit.freedesktop.org/drm/drm:
  drm/i915/dpcd_bl: Unbreak enable_dpcd_backlight modparam
  drm/i915: fix Sphinx build duplicate label warning
  drm/i915/display: Load DP_TP_CTL/STATUS offset before use it
  drm/i915/tgl: TBT AUX should use TC power well ops
  drm/i915: HDCP: fix Ri prime check done during link check
  drm/i915/gt: Update PMINTRMSK holding fw
  drm/i915/tgl: Add Wa_14010477008:tgl
  drm/tidss: fix crash related to accessing freed memory
  drm/dp_mst: Zero assigned PBN when releasing VCPI slots
  drm/amdgpu/display: give aux i2c buses more meaningful names
  drm/amdgpu/display: fix aux registration (v2)
  drm/amdgpu: Correctly initialize thermal controller for GPUs with Powerplay table v0 (e.g Hawaii)
  drm/amd/powerplay: fix resume failed as smu table initialize early exit
  drm/scheduler: fix drm_sched_get_cleanup_job
  drm/meson: Delete an error message in meson_dw_hdmi_bind()
  drm/bridge: anx6345: set correct BPC for display_info of connector
  dt-bindings: display: allow port and ports in panel-lvds
  dt-bindings: display: xpp055c272: Remove the reg property
  dt-bindings: display: ltk500hd1829: Remove the reg property
  drm/bridge: analogix_dp: Split bind() into probe() and real bind()

4 years agoafs: Make record checking use TASK_UNINTERRUPTIBLE when appropriate
David Howells [Thu, 16 Apr 2020 17:17:13 +0000 (18:17 +0100)]
afs: Make record checking use TASK_UNINTERRUPTIBLE when appropriate

When an operation is meant to be done uninterruptibly (such as
FS.StoreData), we should not be allowing volume and server record checking
to be interrupted.

Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation")
Signed-off-by: David Howells <dhowells@redhat.com>
4 years agoafs: Fix to actually set AFS_SERVER_FL_HAVE_EPOCH
David Howells [Fri, 24 Apr 2020 10:21:14 +0000 (11:21 +0100)]
afs: Fix to actually set AFS_SERVER_FL_HAVE_EPOCH

AFS keeps track of the epoch value from the rxrpc protocol to note (a) when
a fileserver appears to have restarted and (b) when different endpoints of
a fileserver do not appear to be associated with the same fileserver
(ie. all probes back from a fileserver from all of its interfaces should
carry the same epoch).

However, the AFS_SERVER_FL_HAVE_EPOCH flag that indicates that we've
received the server's epoch is never set, though it is used.

Fix this to set the flag when we first receive an epoch value from a probe
sent to the filesystem client from the fileserver.

Fixes: 3bf0fb6f33dd ("afs: Probe multiple fileservers simultaneously")
Signed-off-by: David Howells <dhowells@redhat.com>
4 years agoafs: Remove some unused bits
David Howells [Fri, 24 Apr 2020 10:23:17 +0000 (11:23 +0100)]
afs: Remove some unused bits

Remove three bits:

 (1) afs_server::no_epoch is neither set nor used.

 (2) afs_server::have_result is set and a wakeup is applied to it, but
     nothing looks at it or waits on it.

 (3) afs_vl_dump_edestaddrreq() prints afs_addr_list::probed, but nothing
     sets it for VL servers.

Signed-off-by: David Howells <dhowells@redhat.com>
4 years agomac80211: sta_info: Add lockdep condition for RCU list usage
Madhuparna Bhowmik [Thu, 9 Apr 2020 08:29:06 +0000 (13:59 +0530)]
mac80211: sta_info: Add lockdep condition for RCU list usage

The function sta_info_get_by_idx() uses RCU list primitive.
It is called with  local->sta_mtx held from mac80211/cfg.c.
Add lockdep expression to avoid any false positive RCU list warnings.

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Link: https://lore.kernel.org/r/20200409082906.27427-1-madhuparnabhowmik10@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agomac80211: populate debugfs only after cfg80211 init
Johannes Berg [Thu, 23 Apr 2020 09:13:49 +0000 (11:13 +0200)]
mac80211: populate debugfs only after cfg80211 init

When fixing the initialization race, we neglected to account for
the fact that debugfs is initialized in wiphy_register(), and
some debugfs things went missing (or rather were rerooted to the
global debugfs root).

Fix this by adding debugfs entries only after wiphy_register().
This requires some changes in the rate control code since it
currently adds debugfs at alloc time, which can no longer be
done after the reordering.

Reported-by: Jouni Malinen <j@w1.fi>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Reported-by: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Felix Fietkau <nbd@nbd.name>
Cc: stable@vger.kernel.org
Fixes: 52e04b4ce5d0 ("mac80211: fix race in ieee80211_register_hw()")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/20200423111344.0e00d3346f12.Iadc76a03a55093d94391fc672e996a458702875d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agoMerge tag 'drm-misc-fixes-2020-04-23' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 24 Apr 2020 00:13:15 +0000 (10:13 +1000)]
Merge tag 'drm-misc-fixes-2020-04-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A few resources-related fixes (tidss, dp_mst, scheduler), probe fixes and
DT bindings adjustments.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200423103224.7hvyr3v7dmuny2bz@gilmour.lan
4 years agoMerge tag 'drm-intel-fixes-2020-04-23' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Fri, 24 Apr 2020 00:07:56 +0000 (10:07 +1000)]
Merge tag 'drm-intel-fixes-2020-04-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Tigerlake Workaround - disabling media recompression (Matt)
- Fix RPS interrupts for right GPU frequency (Chris)
- HDCP fix prime check (Oliver)
- Tigerlake Thunderbolt power well fix (Matt)
- Tigerlake DP link training fixes (Jose)
- Documentation sphinx build fix (Jani)
- Fix enable_dpcd_backlight modparam (Lyude)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200423190246.GA1710303@intel.com
4 years agoMerge tag 'amd-drm-fixes-5.7-2020-04-22' of git://people.freedesktop.org/~agd5f/linux...
Dave Airlie [Fri, 24 Apr 2020 00:01:08 +0000 (10:01 +1000)]
Merge tag 'amd-drm-fixes-5.7-2020-04-22' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

amd-drm-fixes-5.7-2020-04-22:

amdgpu:
- Fix resume issue on renoir
- Thermal fix for older CI dGPUs
- Fix some fallout from dropping drm load/unload callbacks

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422224647.617724-1-alexander.deucher@amd.com
4 years agonet: bcmgenet: correct per TX/RX ring statistics
Doug Berger [Thu, 23 Apr 2020 22:44:17 +0000 (15:44 -0700)]
net: bcmgenet: correct per TX/RX ring statistics

The change to track net_device_stats per ring to better support SMP
missed updating the rx_dropped member.

The ndo_get_stats method is also needed to combine the results for
ethtool statistics (-S) before filling in the ethtool structure.

Fixes: 37a30b435b92 ("net: bcmgenet: Track per TX/RX rings statistics")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: meth: remove spurious copyright text
Jonathan Corbet [Thu, 23 Apr 2020 15:39:03 +0000 (09:39 -0600)]
net: meth: remove spurious copyright text

Evidently, at some point in the pre-githistorious past,
drivers/net/ethernet/sgi/meth.h somehow contained some code from the
"snull" driver from the Linux Device Drivers book.  A comment crediting
that source, asserting copyright ownership by the LDD authors, and imposing
the LDD2 license terms was duly added to the file.

Any code that may have been derived from snull is long gone, and the
distribution terms are not GPL-compatible.  Since the copyright claim is
not based in fact (if it ever was), simply remove it and the distribution
terms as well.

Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: Kate Stewart <kstewart@linuxfoundation.org>
CC: "Fendt, Oliver" <oliver.fendt@siemens.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: phy: bcm84881: clear settings on link down
Russell King [Thu, 23 Apr 2020 07:57:42 +0000 (08:57 +0100)]
net: phy: bcm84881: clear settings on link down

Clear the link partner advertisement, speed, duplex and pause when
the link goes down, as other phylib drivers do.  This avoids the
stale link partner, speed and duplex settings being reported via
ethtool.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agochcr: Fix CPU hard lockup
Rohit Maheshwari [Thu, 23 Apr 2020 06:48:55 +0000 (12:18 +0530)]
chcr: Fix CPU hard lockup

Soft lock should be taken in place of hard lock.

Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/x25: Fix x25_neigh refcnt leak when receiving frame
Xiyu Yang [Thu, 23 Apr 2020 05:13:03 +0000 (13:13 +0800)]
net/x25: Fix x25_neigh refcnt leak when receiving frame

x25_lapb_receive_frame() invokes x25_get_neigh(), which returns a
reference of the specified x25_neigh object to "nb" with increased
refcnt.

When x25_lapb_receive_frame() returns, local variable "nb" becomes
invalid, so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one path of
x25_lapb_receive_frame(). When pskb_may_pull() returns false, the
function forgets to decrease the refcnt increased by x25_get_neigh(),
causing a refcnt leak.

Fix this issue by calling x25_neigh_put() when pskb_may_pull() returns
false.

Fixes: cb101ed2c3c7 ("x25: Handle undersized/fragmented skbs")
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomptcp/pm_netlink.c : add check for nla_put_in/6_addr
Bo YU [Thu, 23 Apr 2020 02:10:03 +0000 (10:10 +0800)]
mptcp/pm_netlink.c : add check for nla_put_in/6_addr

Normal there should be checked for nla_put_in6_addr like other
usage in net.

Detected by CoverityScan, CID# 1461639

Fixes: 01cacb00b35c ("mptcp: add netlink-based PM")
Signed-off-by: Bo YU <tsu.yubo@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: ethernet: ixp4xx: Add error handling in ixp4xx_eth_probe()
Tang Bin [Thu, 23 Apr 2020 02:16:31 +0000 (10:16 +0800)]
net: ethernet: ixp4xx: Add error handling in ixp4xx_eth_probe()

The function ixp4xx_eth_probe() does not perform sufficient error
checking after executing devm_ioremap_resource(), which can result
in crashes if a critical error path is encountered.

Fixes: f458ac479777 ("ARM/net: ixp4xx: Pass ethernet physical base as resource")
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...
Linus Torvalds [Thu, 23 Apr 2020 20:30:18 +0000 (13:30 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace

Pull SIGCHLD fix from Eric Biederman:
 "Christof Meerwald reported that do_notify_parent has not been
  successfully populating si_pid and si_uid for multi-threaded
  processes.

  This is the one-liner fix. Strictly speaking a one-liner plus
  comment"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  signal: Avoid corrupting si_pid and si_uid in do_notify_parent

4 years agocxgb4: fix adapter crash due to wrong MC size
Vishal Kulkarni [Wed, 22 Apr 2020 15:50:07 +0000 (21:20 +0530)]
cxgb4: fix adapter crash due to wrong MC size

In the absence of MC1, the size calculation function
cudbg_mem_region_size() was returing wrong MC size and
resulted in adapter crash. This patch adds new argument
to cudbg_mem_region_size() which will have actual size
and returns error to caller in the absence of MC1.

Fixes: a1c69520f785 ("cxgb4: collect MC memory dump")
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>"
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'vxlan-geneve-use-the-correct-nlattr-array-for-extack'
David S. Miller [Thu, 23 Apr 2020 19:39:09 +0000 (12:39 -0700)]
Merge branch 'vxlan-geneve-use-the-correct-nlattr-array-for-extack'

Sabrina Dubroca says:

====================
net: vxlan/geneve: use the correct nlattr array for extack

The ->validate callbacks for vxlan and geneve have a couple of typos
in extack, where the nlattr array for IFLA_* attributes is used
instead of the link-specific one.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agogeneve: use the correct nlattr array in NL_SET_ERR_MSG_ATTR
Sabrina Dubroca [Wed, 22 Apr 2020 15:29:51 +0000 (17:29 +0200)]
geneve: use the correct nlattr array in NL_SET_ERR_MSG_ATTR

IFLA_GENEVE_* attributes are in the data array, which is correctly
used when fetching the value, but not when setting the extended
ack. Because IFLA_GENEVE_MAX < IFLA_MAX, we avoid out of bounds
array accesses, but we don't provide a pointer to the invalid
attribute to userspace.

Fixes: a025fb5f49ad ("geneve: Allow configuration of DF behaviour")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovxlan: use the correct nlattr array in NL_SET_ERR_MSG_ATTR
Sabrina Dubroca [Wed, 22 Apr 2020 15:29:50 +0000 (17:29 +0200)]
vxlan: use the correct nlattr array in NL_SET_ERR_MSG_ATTR

IFLA_VXLAN_* attributes are in the data array, which is correctly
used when fetching the value, but not when setting the extended
ack. Because IFLA_VXLAN_MAX < IFLA_MAX, we avoid out of bounds
array accesses, but we don't provide a pointer to the invalid
attribute to userspace.

Fixes: 653ef6a3e4af ("vxlan: change vxlan_[config_]validate() to use netlink_ext_ack for error reporting")
Fixes: b4d3069783bc ("vxlan: Allow configuration of DF behaviour")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomlxsw: Fix some IS_ERR() vs NULL bugs
Dan Carpenter [Wed, 22 Apr 2020 09:36:41 +0000 (12:36 +0300)]
mlxsw: Fix some IS_ERR() vs NULL bugs

The mlxsw_sp_acl_rulei_create() function is supposed to return an error
pointer from mlxsw_afa_block_create().  The problem is that these
functions both return NULL instead of error pointers.  Half the callers
expect NULL and half expect error pointers so it could lead to a NULL
dereference on failure.

This patch changes both of them to return error pointers and changes all
the callers which checked for NULL to check for IS_ERR() instead.

Fixes: 4cda7d8d7098 ("mlxsw: core: Introduce flexible actions support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: phy: marvell10g: limit soft reset to 88x3310
Baruch Siach [Tue, 21 Apr 2020 09:04:46 +0000 (12:04 +0300)]
net: phy: marvell10g: limit soft reset to 88x3310

The MV_V2_PORT_CTRL_SWRST bit in MV_V2_PORT_CTRL is reserved on 88E2110.
Setting SWRST on 88E2110 breaks packets transfer after interface down/up
cycle.

Fixes: 8f48c2ac85ed ("net: marvell10g: soft-reset the PHY when coming out of low power")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge tag 'pci-v5.7-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Linus Torvalds [Thu, 23 Apr 2020 18:04:59 +0000 (11:04 -0700)]
Merge tag 'pci-v5.7-fixes-1' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Workaround Apex TPU class code issue that prevents resource
   assignment (Bjorn Helgaas)

 - Update MAINTAINERS to add Rob Herring for native PCI controller
   drivers (Lorenzo Pieralisi)

* tag 'pci-v5.7-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Add Rob Herring and remove Andy Murray as PCI reviewers
  PCI: Move Apex Edge TPU class quirk to fix BAR assignment

4 years agoMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Thu, 23 Apr 2020 16:36:40 +0000 (09:36 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A few smaller fixes for v5.7-rc3: The majority are fixes for bugs I
  found after restarting my randconfig build testing that had been
  dormant for a while.

  On the Nokia N950/N9 phone, a DT fix is required to address a boot
  regression.

  For the bcm283x (Raspberry Pi), two DT fixes address minor issues"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  soc: imx8: select SOC_BUS
  soc: tegra: fix tegra_pmc_get_suspend_mode definition
  soc: fsl: dpio: avoid stack usage warning
  soc: fsl: dpio: fix incorrect pointer conversions
  ARM: imx: provide v7_cpu_resume() only on ARM_CPU_SUSPEND=y
  ARM: dts: bcm283x: Disable dsi0 node
  firmware: xilinx: make firmware_debugfs_root static
  drivers: soc: xilinx: fix firmware driver Kconfig dependency
  ARM: dts: bcm283x: Add cells encoding format to firmware bus
  ARM: dts: OMAP3: disable RNG on N950/N9

4 years agoMerge tag 'nfsd-5.7-rc-1' of git://git.linux-nfs.org/projects/cel/cel-2.6
Linus Torvalds [Thu, 23 Apr 2020 16:33:43 +0000 (09:33 -0700)]
Merge tag 'nfsd-5.7-rc-1' of git://git.linux-nfs.org/projects/cel/cel-2.6

Pull nfsd fixes from Chuck Lever:
 "The first set of 5.7-rc fixes for NFS server issues.

  These were all unresolved at the time the 5.7 window opened, and
  needed some additional time to ensure they were correctly addressed.
  They are ready now.

  At the moment I know of one more urgent issue regarding the NFS
  server. A fix has been tested and is under review. I expect to send
  one more pull request, containing this fix (which now consists of 3
  patches).

  Fixes:

   - Address several use-after-free and memory leak bugs

   - Prevent a backchannel livelock"

* tag 'nfsd-5.7-rc-1' of git://git.linux-nfs.org/projects/cel/cel-2.6:
  svcrdma: Fix leak of svc_rdma_recv_ctxt objects
  svcrdma: Fix trace point use-after-free race
  SUNRPC: Fix backchannel RPC soft lockups
  SUNRPC/cache: Fix unsafe traverse caused double-free in cache_purge
  nfsd: memory corruption in nfsd4_lock()

4 years agoMerge tag 'for-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon...
Linus Torvalds [Thu, 23 Apr 2020 16:31:20 +0000 (09:31 -0700)]
Merge tag 'for-5.7-rc3' of git://git./linux/kernel/git/linkinjeon/exfat

Pull exfat fixes from Namjae Jeon:

 - several bug fixes(broken mount discard option, remount failure,
   memory leak)

 - add missing MODULE_ALIAS_FS for automatically loading exfat module.

 - set s_time_gran and truncate atime with exfat timestamp granularity.

* tag 'for-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  exfat: truncate atimes to 2s granularity
  exfat: properly set s_time_gran
  exfat: remove 'bps' mount-option
  exfat: Unify access to the boot sector
  exfat: add missing MODULE_ALIAS_FS()
  exfat: Fix discard support

4 years agoMerge tag 'rproc-v5.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/anderss...
Linus Torvalds [Thu, 23 Apr 2020 16:28:15 +0000 (09:28 -0700)]
Merge tag 'rproc-v5.7-fixes' of git://git./linux/kernel/git/andersson/remoteproc

Pull remoteproc fixes from Bjorn Andersson:
 "This fixes a regression in the probe error path of the Qualcomm modem
  remoteproc driver and a mix up of phy_addr_t and dma_addr_t in the
  Mediatek SCP control driver"

* tag 'rproc-v5.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
  remoteproc: mtk_scp: use dma_addr_t for DMA API
  remoteproc: qcom_q6v5_mss: fix q6v5_probe() error paths
  remoteproc: qcom_q6v5_mss: fix a bug in q6v5_probe()

4 years agoMerge tag 'audit-pr-20200422' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoor...
Linus Torvalds [Thu, 23 Apr 2020 16:21:53 +0000 (09:21 -0700)]
Merge tag 'audit-pr-20200422' of git://git./linux/kernel/git/pcmoore/audit

Pull audit fix from Paul Moore:
 "One small audit patch fix, fixing a missing length check on input from
  userspace, nothing crazy"

* tag 'audit-pr-20200422' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: check the length of userspace generated audit records

4 years agoDocumentation: arm64: fix amu.rst doc warnings
Randy Dunlap [Wed, 8 Apr 2020 03:53:31 +0000 (20:53 -0700)]
Documentation: arm64: fix amu.rst doc warnings

Fix bullet list formatting to eliminate doc warnings:

Documentation/arm64/amu.rst:26: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:60: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:81: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:108: WARNING: Unexpected indentation.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Ionela Voinescu <ionela.voinescu@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
4 years agoata: sata_inic162x fix a spelling issue
John Oldman [Thu, 23 Apr 2020 09:07:42 +0000 (10:07 +0100)]
ata: sata_inic162x fix a spelling issue

Fixed a warning message spelling issue.

Signed-off-by: John Oldman <john.oldman@polehill.co.uk>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agonull_blk: Cleanup zoned device initialization
Damien Le Moal [Thu, 23 Apr 2020 03:02:38 +0000 (12:02 +0900)]
null_blk: Cleanup zoned device initialization

Move all zoned mode related code from null_blk_main.c to
null_blk_zoned.c, avoiding an ugly #ifdef in the process.
Rename null_zone_init() into null_init_zoned_dev(), null_zone_exit()
into null_free_zoned_dev() and add the new function
null_register_zoned_dev() to finalize the zoned dev setup before
add_disk().

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agonull_blk: Fix zoned command handling
Damien Le Moal [Thu, 23 Apr 2020 03:02:37 +0000 (12:02 +0900)]
null_blk: Fix zoned command handling

For write operations issued to a null_blk device with zoned mode
enabled, the state and write pointer position of the zone targeted by
the command should be checked before badblocks and memory backing
are handled as the write may be first failed due to, for instance, a
sector position not aligned with the zone write pointer. This order of
checking for errors reflects more accuratly the behavior of physical
zoned devices.

Furthermore, the write pointer position of the target zone should be
incremented only and only if no errors are reported by badblocks and
memory backing handling.

To fix this, introduce the small helper function null_process_cmd()
which execute null_handle_badblocks() and null_handle_memory_backed()
and use this function in null_zone_write() to correctly handle write
requests to zoned null devices depending on the type and state of the
write target zone. Also call this function in null_handle_zoned() to
process read requests to zoned null devices.

null_process_cmd() is called directly from null_handle_cmd() for
regular null devices, resulting in no functional change for these type
of devices. To have symmetric names, the function null_handle_zoned()
is renamed to null_process_zoned_cmd().

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoMerge tag 'arm-soc/for-5.7/devicetree-fixes' of https://github.com/Broadcom/stblinux...
Arnd Bergmann [Thu, 23 Apr 2020 15:12:48 +0000 (17:12 +0200)]
Merge tag 'arm-soc/for-5.7/devicetree-fixes' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.7, please pull the following:

- Nicolas provides a fix for 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's
  firmware bus DMA limitations") which missed adding proper
  #address-cells and #size-cells properties and he also disables the DSI
  node which should have been disabled by default but was not.

* tag 'arm-soc/for-5.7/devicetree-fixes' of https://github.com/Broadcom/stblinux:
  ARM: dts: bcm283x: Disable dsi0 node
  ARM: dts: bcm283x: Add cells encoding format to firmware bus

Link: https://lore.kernel.org/r/20200417171725.1084-1-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoALSA: hda: Always use jackpoll helper for jack update after resume
Takashi Iwai [Wed, 22 Apr 2020 20:37:44 +0000 (22:37 +0200)]
ALSA: hda: Always use jackpoll helper for jack update after resume

HD-audio codec driver applies a tricky procedure to forcibly perform
the runtime resume by mimicking the usage count even if the device has
been runtime-suspended beforehand.  This was needed to assure to
trigger the jack detection update after the system resume.

And recently we also applied the similar logic to the HD-audio
controller side.  However this seems leading to some inconsistency,
and eventually PCI controller gets screwed up.

This patch is an attempt to fix and clean up those behavior: instead
of the tricky runtime resume procedure, the existing jackpoll work is
scheduled when such a forced codec resume is required.  The jackpoll
work will power up the codec, and this alone should suffice for the
jack status update in usual cases.  If the extra polling is requested
(by checking codec->jackpoll_interval), the manual update is invoked
after that, and the codec is powered down again.

Also, we filter the spurious wake up of the codec from the controller
runtime resume by checking codec->relaxed_resume flag.  If this flag
is set, basically we don't need to wake up explicitly, but it's
supposed to be done via the audio component notifier.

Fixes: c4c8dd6ef807 ("ALSA: hda: Skip controller resume if not needed")
Link: https://lore.kernel.org/r/20200422203744.26299-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agomac80211_hwsim: use GFP_ATOMIC under spin lock
Wei Yongjun [Wed, 22 Apr 2020 02:01:54 +0000 (02:01 +0000)]
mac80211_hwsim: use GFP_ATOMIC under spin lock

A spin lock is taken here so we should use GFP_ATOMIC.

Fixes: 5d44fe7c9808 ("mac80211_hwsim: add frame transmission support over virtio")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200422020154.112088-1-weiyongjun1@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agoh8300: ignore vmlinux.lds
Masahiro Yamada [Thu, 23 Apr 2020 07:40:31 +0000 (16:40 +0900)]
h8300: ignore vmlinux.lds

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
4 years agoALSA: hda/realtek - Add new codec supported for ALC245
Kailang Yang [Thu, 23 Apr 2020 06:18:31 +0000 (14:18 +0800)]
ALSA: hda/realtek - Add new codec supported for ALC245

Enable new codec supported for ALC245.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/8c0804738b2c42439f59c39c8437817f@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoALSA: usb-audio: Fix usb audio refcnt leak when getting spdif
Xiyu Yang [Thu, 23 Apr 2020 04:54:19 +0000 (12:54 +0800)]
ALSA: usb-audio: Fix usb audio refcnt leak when getting spdif

snd_microii_spdif_default_get() invokes snd_usb_lock_shutdown(), which
increases the refcount of the snd_usb_audio object "chip".

When snd_microii_spdif_default_get() returns, local variable "chip"
becomes invalid, so the refcount should be decreased to keep refcount
balanced.

The reference counting issue happens in several exception handling paths
of snd_microii_spdif_default_get(). When those error scenarios occur
such as usb_ifnum_to_if() returns NULL, the function forgets to decrease
the refcnt increased by snd_usb_lock_shutdown(), causing a refcnt leak.

Fix this issue by jumping to "end" label when those error scenarios
occur.

Fixes: 447d6275f0c2 ("ALSA: usb-audio: Add sanity checks for endpoint accesses")
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1587617711-13200-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agolibbpf: Only check mode flags in get_xdp_id
David Ahern [Mon, 20 Apr 2020 16:18:43 +0000 (10:18 -0600)]
libbpf: Only check mode flags in get_xdp_id

The commit in the Fixes tag changed get_xdp_id to only return prog_id
if flags is 0, but there are other XDP flags than the modes - e.g.,
XDP_FLAGS_UPDATE_IF_NOEXIST. Since the intention was only to look at
MODE flags, clear other ones before checking if flags is 0.

Fixes: f07cbad29741 ("libbpf: Fix bpf_get_link_xdp_id flags handling")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrey Ignatov <rdna@fb.com>
4 years agoipv4: Update fib_select_default to handle nexthop objects
David Ahern [Wed, 22 Apr 2020 21:40:20 +0000 (15:40 -0600)]
ipv4: Update fib_select_default to handle nexthop objects

A user reported [0] hitting the WARN_ON in fib_info_nh:

    [ 8633.839816] ------------[ cut here ]------------
    [ 8633.839819] WARNING: CPU: 0 PID: 1719 at include/net/nexthop.h:251 fib_select_path+0x303/0x381
    ...
    [ 8633.839846] RIP: 0010:fib_select_path+0x303/0x381
    ...
    [ 8633.839848] RSP: 0018:ffffb04d407f7d00 EFLAGS: 00010286
    [ 8633.839850] RAX: 0000000000000000 RBX: ffff9460b9897ee8 RCX: 00000000000000fe
    [ 8633.839851] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
    [ 8633.839852] RBP: ffff946076049850 R08: 0000000059263a83 R09: ffff9460840e4000
    [ 8633.839853] R10: 0000000000000014 R11: 0000000000000000 R12: ffffb04d407f7dc0
    [ 8633.839854] R13: ffffffffa4ce3240 R14: 0000000000000000 R15: ffff9460b7681f60
    [ 8633.839857] FS:  00007fcac2e02700(0000) GS:ffff9460bdc00000(0000) knlGS:0000000000000000
    [ 8633.839858] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [ 8633.839859] CR2: 00007f27beb77e28 CR3: 0000000077734000 CR4: 00000000000006f0
    [ 8633.839867] Call Trace:
    [ 8633.839871]  ip_route_output_key_hash_rcu+0x421/0x890
    [ 8633.839873]  ip_route_output_key_hash+0x5e/0x80
    [ 8633.839876]  ip_route_output_flow+0x1a/0x50
    [ 8633.839878]  __ip4_datagram_connect+0x154/0x310
    [ 8633.839880]  ip4_datagram_connect+0x28/0x40
    [ 8633.839882]  __sys_connect+0xd6/0x100
    ...

The WARN_ON is triggered in fib_select_default which is invoked when
there are multiple default routes. Update the function to use
fib_info_nhc and convert the nexthop checks to use fib_nh_common.

Add test case that covers the affected code path.

[0] https://github.com/FRRouting/frr/issues/6089

Fixes: 493ced1ac47c ("ipv4: Allow routes to use nexthop objects")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonetlabel: Kconfig: Update reference for NetLabel Tools project
Salvatore Bonaccorso [Wed, 22 Apr 2020 19:07:53 +0000 (21:07 +0200)]
netlabel: Kconfig: Update reference for NetLabel Tools project

The NetLabel Tools project has moved from http://netlabel.sf.net to a
GitHub project. Update to directly refer to the new home for the tools.

Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMAINTAINERS: update dpaa2-eth maintainer list
Ioana Ciornei [Wed, 22 Apr 2020 17:52:54 +0000 (20:52 +0300)]
MAINTAINERS: update dpaa2-eth maintainer list

Add myself as another maintainer of dpaa2-eth.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomptcp: fix data_fin handing in RX path
Paolo Abeni [Wed, 22 Apr 2020 16:24:56 +0000 (18:24 +0200)]
mptcp: fix data_fin handing in RX path

The data fin flag is set only via a DSS option, but
mptcp_incoming_options() copies it unconditionally from the
provided RX options.

Since we do not clear all the mptcp sock RX options in a
socket free/alloc cycle, we can end-up with a stray data_fin
value while parsing e.g. MPC packets.

That would lead to mapping data corruption and will trigger
a few WARN_ON() in the RX path.

Instead of adding a costly memset(), fetch the data_fin flag
only for DSS packets - when we always explicitly initialize
such bit at option parsing time.

Fixes: 648ef4b88673 ("mptcp: Implement MPTCP receive path")
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovrf: Fix IPv6 with qdisc and xfrm
David Ahern [Tue, 21 Apr 2020 23:48:27 +0000 (17:48 -0600)]
vrf: Fix IPv6 with qdisc and xfrm

When a qdisc is attached to the VRF device, the packet goes down the ndo
xmit function which is setup to send the packet back to the VRF driver
which does a lookup to send the packet out. The lookup in the VRF driver
is not considering xfrm policies. Change it to use ip6_dst_lookup_flow
rather than ip6_route_output.

Fixes: 35402e313663 ("net: Add IPv6 support to VRF device")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoDocumentation: add documentation of ping_group_range
Stephen Hemminger [Tue, 21 Apr 2020 20:34:48 +0000 (13:34 -0700)]
Documentation: add documentation of ping_group_range

Support for non-root users to send ICMP ECHO requests was added
back in Linux 3.0 kernel, but the documentation for the sysctl
to enable it has been missing.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'sctp-fixes'
David S. Miller [Thu, 23 Apr 2020 02:27:40 +0000 (19:27 -0700)]
Merge branch 'sctp-fixes'

Jere Leppänen says:

====================
sctp: Fix problems with peer restart when in SHUTDOWN-PENDING state and socket is closed

These patches are related to the scenario described in commit
bdf6fa52f01b ("sctp: handle association restarts when the socket is
closed."). To recap, when our association is in SHUTDOWN-PENDING state
and we've closed our one-to-one socket, while the peer crashes without
being detected, restarts and reconnects using the same addresses and
ports, we start association shutdown.

In this case, Cumulative TSN Ack in the SHUTDOWN that we send has
always been incorrect. Additionally, bundling of the SHUTDOWN with the
COOKIE-ACK was broken by a later commit. This series fixes both of
these issues.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agosctp: Fix SHUTDOWN CTSN Ack in the peer restart case
Jere Leppänen [Tue, 21 Apr 2020 19:03:42 +0000 (22:03 +0300)]
sctp: Fix SHUTDOWN CTSN Ack in the peer restart case

When starting shutdown in sctp_sf_do_dupcook_a(), get the value for
SHUTDOWN Cumulative TSN Ack from the new association, which is
reconstructed from the cookie, instead of the old association, which
the peer doesn't have anymore.

Otherwise the SHUTDOWN is either ignored or replied to with an ABORT
by the peer because CTSN Ack doesn't match the peer's Initial TSN.

Fixes: bdf6fa52f01b ("sctp: handle association restarts when the socket is closed.")
Signed-off-by: Jere Leppänen <jere.leppanen@nokia.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agosctp: Fix bundling of SHUTDOWN with COOKIE-ACK
Jere Leppänen [Tue, 21 Apr 2020 19:03:41 +0000 (22:03 +0300)]
sctp: Fix bundling of SHUTDOWN with COOKIE-ACK

When we start shutdown in sctp_sf_do_dupcook_a(), we want to bundle
the SHUTDOWN with the COOKIE-ACK to ensure that the peer receives them
at the same time and in the correct order. This bundling was broken by
commit 4ff40b86262b ("sctp: set chunk transport correctly when it's a
new asoc"), which assigns a transport for the COOKIE-ACK, but not for
the SHUTDOWN.

Fix this by passing a reference to the COOKIE-ACK chunk as an argument
to sctp_sf_do_9_2_start_shutdown() and onward to
sctp_make_shutdown(). This way the SHUTDOWN chunk is assigned the same
transport as the COOKIE-ACK chunk, which allows them to be bundled.

In sctp_sf_do_9_2_start_shutdown(), the void *arg parameter was
previously unused. Now that we're taking it into use, it must be a
valid pointer to a chunk, or NULL. There is only one call site where
it's not, in sctp_sf_autoclose_timer_expire(). Fix that too.

Fixes: 4ff40b86262b ("sctp: set chunk transport correctly when it's a new asoc")
Signed-off-by: Jere Leppänen <jere.leppanen@nokia.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: dsa: don't fail to probe if we couldn't set the MTU
Vladimir Oltean [Tue, 21 Apr 2020 17:18:53 +0000 (20:18 +0300)]
net: dsa: don't fail to probe if we couldn't set the MTU

There is no reason to fail the probing of the switch if the MTU couldn't
be configured correctly (either the switch port itself, or the host
port) for whatever reason. MTU-sized traffic probably won't work, sure,
but we can still probably limp on and support some form of communication
anyway, which the users would probably appreciate more.

Fixes: bfcb813203e6 ("net: dsa: configure the MTU for switch ports")
Reported-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>