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(parent: a5a5cb8) | patch
batman-adv: fix potential kernel paging error for unicast transmissions
authorAntonio Quartulli <antonio@meshcoding.com>
Sat, 15 Feb 2014 20:50:37 +0000 (21:50 +0100)
committerAntonio Quartulli <antonio@meshcoding.com>
Mon, 17 Feb 2014 16:17:02 +0000 (17:17 +0100)
commit70b271a78beba787155d6696aacd7c4d4a251c50
treebb8f4e8e8f9833d993b8f09638a063d6290f5281tree | snapshot
parenta5a5cb8cab526af2f6cbe9715f8ca843192f0d81commit | diff
batman-adv: fix potential kernel paging error for unicast transmissions

batadv_send_skb_prepare_unicast(_4addr) might reallocate the
skb's data. If it does then our ethhdr pointer is not valid
anymore in batadv_send_skb_unicast(), resulting in a kernel
paging error.

Fixing this by refetching the ethhdr pointer after the
potential reallocation.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
net/batman-adv/send.c diff | blob | history
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