diff options
| author | Eric Dumazet <edumazet@google.com> | 2013-05-13 21:25:52 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-27 10:34:31 -0700 |
| commit | 41a187532a9458873a603aee48f017c0288d03fe (patch) | |
| tree | f027c38a92cbae99e4582f831c83f1028e89f5f8 /ipc/mq_sysctl.c | |
| parent | 1819a873d94cd7abeb94f235175052f72fe6fa2c (diff) | |
tcp: fix tcp_md5_hash_skb_data()
[ Upstream commit 54d27fcb338bd9c42d1dfc5a39e18f6f9d373c2e ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'ipc/mq_sysctl.c')
0 files changed, 0 insertions, 0 deletions