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| author | Eric Dumazet <edumazet@google.com> | 2012-12-06 13:54:59 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-12-07 14:39:29 -0500 |
| commit | c3c7c254b2e8cd99b0adf288c2a1bddacd7ba255 (patch) | |
| tree | cca25bcae0cc6172a616335041c1e54a33db451c /arch/x86/kernel/cpu/perf_event_p6.c | |
| parent | 93b174ad71b08e504c2cf6e8a58ecce778b77a40 (diff) | |
| download | blackbird-op-linux-c3c7c254b2e8cd99b0adf288c2a1bddacd7ba255.tar.gz blackbird-op-linux-c3c7c254b2e8cd99b0adf288c2a1bddacd7ba255.zip | |
net: gro: fix possible panic in skb_gro_receive()
commit 2e71a6f8084e (net: gro: selective flush of packets) added
a bug for skbs using frag_list. This part of the GRO stack is rarely
used, as it needs skb not using a page fragment for their skb->head.
Most drivers do use a page fragment, but some of them use GFP_KERNEL
allocations for the initial fill of their RX ring buffer.
napi_gro_flush() overwrite skb->prev that was used for these skb to
point to the last skb in frag_list.
Fix this using a separate field in struct napi_gro_cb to point to the
last fragment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event_p6.c')
0 files changed, 0 insertions, 0 deletions
