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| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2013-11-29 06:39:44 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-08 07:29:26 -0800 |
| commit | e761bada6f1eb056e720afd5704a21a79fb8df35 (patch) | |
| tree | ea92a61a3d4bf4ac636baaf2145688fbc26d2fdf /net/lapb/lapb_timer.c | |
| parent | 7be560d6fa090edd57fa2761282f46ef85a20088 (diff) | |
| download | lwn-e761bada6f1eb056e720afd5704a21a79fb8df35.tar.gz lwn-e761bada6f1eb056e720afd5704a21a79fb8df35.zip | |
ipv6: fix possible seqlock deadlock in ip6_finish_output2
[ Upstream commit 7f88c6b23afbd31545c676dea77ba9593a1a14bf ]
IPv6 stats are 64 bits and thus are protected with a seqlock. By not
disabling bottom-half we could deadlock here if we don't disable bh and
a softirq reentrantly updates the same mib.
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions