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| author | Eric Dumazet <edumazet@google.com> | 2017-10-08 21:44:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-09 20:55:01 -0700 |
| commit | fbb1fb4ad415cb31ce944f65a5ca700aaf73a227 (patch) | |
| tree | a7b1d3fddab2353229b73daaa103904ce539414d /kernel/context_tracking.c | |
| parent | 9f1c2674b328a69ab5a9b5a1c52405795ee4163f (diff) | |
net: defer call to cgroup_sk_alloc()
sk_clone_lock() might run while TCP/DCCP listener already vanished.
In order to prevent use after free, it is better to defer cgroup_sk_alloc()
to the point we know both parent and child exist, and from process context.
Fixes: e994b2f0fb92 ("tcp: do not lock listener to process SYN packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/context_tracking.c')
0 files changed, 0 insertions, 0 deletions