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| author |   Eric Dumazet <edumazet@google.com> | 2017-10-08 21:44:51 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-10-09 20:55:01 -0700 |
| commit | 9f1c2674b328a69ab5a9b5a1c52405795ee4163f (patch) | |
| tree | bef7fc6c61201ca2b6d913bab2686a38fda039d2 /ipc | |
| parent | Merge branch 'ppc-bundle' (bundle from Michael Ellerman) (diff) | |
| download | linux-dev-9f1c2674b328a69ab5a9b5a1c52405795ee4163f.tar.xz linux-dev-9f1c2674b328a69ab5a9b5a1c52405795ee4163f.zip | |
net: memcontrol: defer call to mem_cgroup_sk_alloc()
Instead of calling mem_cgroup_sk_alloc() from BH context,
it is better to call it from inet_csk_accept() in process context.
Not only this removes code in mem_cgroup_sk_alloc(), but it also
fixes a bug since listener might have been dismantled and css_get()
might cause a use-after-free.
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 'ipc')
0 files changed, 0 insertions, 0 deletions