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(parent: 8c75595) | patch
mptcp: fix uninitialized value access
authorPaolo Abeni <pabeni@redhat.com>
Thu, 30 Apr 2020 13:03:22 +0000 (15:03 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 30 Apr 2020 19:34:07 +0000 (12:34 -0700)
commitac2b47fb92c50682d89d7350a491a6a392bac5dd
tree3d4f969f7f09664e88d7a35e811e174bcd6e1a49tree | snapshot
parent8c755953603fdad8bcd7aa7bb7b5abc1ead8d944commit | diff
mptcp: fix uninitialized value access

tcp_v{4,6}_syn_recv_sock() set 'own_req' only when returning
a not NULL 'child', let's check 'own_req' only if child is
available to avoid an - unharmful - UBSAN splat.

v1 -> v2:
 - reference the correct hash

Fixes: 4c8941de781c ("mptcp: avoid flipping mp_capable field in syn_recv_sock()")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/mptcp/subflow.c diff | blob | history
Domain: System / Kernel;