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| author | Jason Wang | 2017-10-27 05:05:44 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-10-28 12:05:28 +0200 |
| commit | 63b9ab65bd76e5de6479bb14b4014b64aa1a317a (patch) | |
| tree | 3822be64ed1349f2d394198b022fe482ddaa47e7 /net/ipv4/tcp_output.c | |
| parent | Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirshe... (diff) | |
| download | kernel-qcow2-linux-63b9ab65bd76e5de6479bb14b4014b64aa1a317a.tar.gz kernel-qcow2-linux-63b9ab65bd76e5de6479bb14b4014b64aa1a317a.tar.xz kernel-qcow2-linux-63b9ab65bd76e5de6479bb14b4014b64aa1a317a.zip | |
tuntap: properly align skb->head before building skb
An unaligned alloc_frag->offset caused by previous allocation will
result an unaligned skb->head. This will lead unaligned
skb_shared_info and then unaligned dataref which requires to be
aligned for accessing on some architecture. Fix this by aligning
alloc_frag->offset before the frag refilling.
Fixes: 0bbd7dad34f8 ("tun: make tun_build_skb() thread safe")
Cc: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Cc: Wei Wei <dotweiba@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reported-by: Wei Wei <dotweiba@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
0 files changed, 0 insertions, 0 deletions