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| author | Eric Dumazet <edumazet@google.com> | 2015-08-10 09:09:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-10 21:17:29 -0700 |
| commit | 2235f2ac75fd2501c251b0b699a9632e80239a6d (patch) | |
| tree | 1d332db260b2a933ac42386c254d0d14163a1d84 /net/ipv6 | |
| parent | 9d332d92a95c9c67abe08b5f7cba64d8fc1e3c76 (diff) | |
| download | linux-2235f2ac75fd2501c251b0b699a9632e80239a6d.tar.gz linux-2235f2ac75fd2501c251b0b699a9632e80239a6d.tar.bz2 linux-2235f2ac75fd2501c251b0b699a9632e80239a6d.zip | |
inet: fix races with reqsk timers
reqsk_queue_destroy() and reqsk_queue_unlink() should use
del_timer_sync() instead of del_timer() before calling reqsk_put(),
otherwise we could free a req still used by another cpu.
But before doing so, reqsk_queue_destroy() must release syn_wait_lock
spinlock or risk a dead lock, as reqsk_timer_handler() might
need to take this same spinlock from reqsk_queue_unlink() (called from
inet_csk_reqsk_queue_drop())
Fixes: fa76ce7328b2 ("inet: get rid of central tcp/dccp listener timer")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
0 files changed, 0 insertions, 0 deletions