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(parent: 33cf84b) | patch
net: avoid NULL deref in inet_ctl_sock_destroy()
authorEric Dumazet <edumazet@google.com>
Mon, 2 Nov 2015 15:50:07 +0000 (07:50 -0800)
committerBen Hutchings <ben@decadent.org.uk>
Fri, 27 Nov 2015 12:48:25 +0000 (12:48 +0000)
commitf79c83d6c41930362bc66fc71489e92975a2facf
treef6d797a0a84eb9ae241034bdc7a65cf79026cf0ctree | snapshot
parent33cf84ba8c25b40c7de52029efc8d4372725c95fcommit | diff
net: avoid NULL deref in inet_ctl_sock_destroy()

[ Upstream commit 8fa677d2706d325d71dab91bf6e6512c05214e37 ]

Under low memory conditions, tcp_sk_init() and icmp_sk_init()
can both iterate on all possible cpus and call inet_ctl_sock_destroy(),
with eventual NULL pointer.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
include/net/inet_common.h diff | blob | history
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