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authorEric Dumazet <edumazet@google.com>2013-03-14 05:40:32 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-14 11:49:45 -0400
commit16fad69cfe4adbbfa813de516757b87bcae36d93 (patch)
tree5b16184db33e16e398fa88ca1dcbb4f054fdaffa /fs/buffer.c
parentb701f16dd490d3f346724050f17d60beda094998 (diff)
tcp: fix skb_availroom()
Chrome OS team reported a crash on a Pixel ChromeBook in TCP stack : https://code.google.com/p/chromium/issues/detail?id=182056 commit a21d45726acac (tcp: avoid order-1 allocations on wifi and tx path) did a poor choice adding an 'avail_size' field to skb, while what we really needed was a 'reserved_tailroom' one. It would have avoided commit 22b4a4f22da (tcp: fix retransmit of partially acked frames) and this commit. Crash occurs because skb_split() is not aware of the 'avail_size' management (and should not be aware) Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Mukesh Agrawal <quiche@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/buffer.c')
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