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authorXin Long <lucien.xin@gmail.com>2017-02-07 20:56:08 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-07-05 14:37:21 +0200
commitdb1323b77c2b35e5633867fc5e8a79c65f130119 (patch)
treeed4eee29a937499f0a419bd690ebf952e2ec8009 /scripts/gdb/linux/tasks.py
parentd521e9c384f9737ac22b76b48c787375f0fb988a (diff)
sctp: check af before verify address in sctp_addr_id2transport
[ Upstream commit 912964eacb111551db73429719eb5fadcab0ff8a ] Commit 6f29a1306131 ("sctp: sctp_addr_id2transport should verify the addr before looking up assoc") invoked sctp_verify_addr to verify the addr. But it didn't check af variable beforehand, once users pass an address with family = 0 through sockopt, sctp_get_af_specific will return NULL and NULL pointer dereference will be caused by af->sockaddr_len. This patch is to fix it by returning NULL if af variable is NULL. Fixes: 6f29a1306131 ("sctp: sctp_addr_id2transport should verify the addr before looking up assoc") Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gdb/linux/tasks.py')
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