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| author |   Eric Dumazet <edumazet@google.com> | 2013-05-13 21:25:52 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-05-14 11:32:04 -0700 |
| commit | 54d27fcb338bd9c42d1dfc5a39e18f6f9d373c2e (patch) | |
| tree | b58af078897a29f931399b78d27655aea5c016a6 /drivers | |
| parent | be2net: Avoid double insertion of vlan tags. (diff) | |
| download | linux-dev-54d27fcb338bd9c42d1dfc5a39e18f6f9d373c2e.tar.xz linux-dev-54d27fcb338bd9c42d1dfc5a39e18f6f9d373c2e.zip | |
tcp: fix tcp_md5_hash_skb_data()
TCP md5 communications fail [1] for some devices, because sg/crypto code
assume page offsets are below PAGE_SIZE.
This was discovered using mlx4 driver [2], but I suspect loopback
might trigger the same bug now we use order-3 pages in tcp_sendmsg()
[1] Failure is giving following messages.
huh, entered softirq 3 NET_RX ffffffff806ad230 preempt_count 00000100,
exited with 00000101?
[2] mlx4 driver uses order-2 pages to allocate RX frags
Reported-by: Matt Schnall <mischnal@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Bernhard Beck <bbeck@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions