From: Masahide NAKAMURA <nakam@linux-ipv6.org>
Date: Tue, 5 Dec 2006 21:48:27 +0000 (-0800)
Subject: [IPV6] RAW: Don't release unlocked sock.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4e33fa14faecc150e97c0e4f2320745bdc7b7112;p=openwrt%2Fstaging%2Fblogic.git

[IPV6] RAW: Don't release unlocked sock.

When user builds IPv6 header and send it through raw socket, kernel
tries to release unlocked sock. (Kernel log shows
"BUG: bad unlock balance detected" with enabled debug option.)

The lock is held only for non-hdrincl sock in this function
then this patch fix to do nothing about lock for hdrincl one.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index c2e629d6aea4..4ae1b19ada5d 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -854,7 +854,8 @@ back_from_confirm:
 	}
 done:
 	dst_release(dst);
-	release_sock(sk);
+	if (!inet->hdrincl)
+		release_sock(sk);
 out:	
 	fl6_sock_release(flowlabel);
 	return err<0?err:len;