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| author | Eric Dumazet <edumazet@google.com> | 2017-10-22 22:33:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-18 13:11:07 +0300 |
| commit | 6f8048cd59d7b3d0b2abb38fbdedcaa5bf69ed28 (patch) | |
| tree | 05de7fac708003bdbb2e197d078b1bed26e34ba2 /net/dccp | |
| parent | 13eddc67565a7e582c3a1f87627842e0da80291c (diff) | |
| download | linux-6f8048cd59d7b3d0b2abb38fbdedcaa5bf69ed28.tar.xz | |
tcp/dccp: fix lockdep splat in inet_csk_route_req()
[ Upstream commit a6ca7abe53633d08eea1c6756cb49c9b2d4c90bf ]
This patch fixes the following lockdep splat in inet_csk_route_req()
lockdep_rcu_suspicious
inet_csk_route_req
tcp_v4_send_synack
tcp_rtx_synack
inet_rtx_syn_ack
tcp_fastopen_synack_time
tcp_retransmit_timer
tcp_write_timer_handler
tcp_write_timer
call_timer_fn
Thread running inet_csk_route_req() owns a reference on the request
socket, so we have the guarantee ireq->ireq_opt wont be changed or
freed.
lockdep can enforce this invariant for us.
Fixes: c92e8c02fe66 ("tcp/dccp: fix ireq->opt races")
Signed-off-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/dccp')
0 files changed, 0 insertions, 0 deletions