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author | Xin Long <lucien.xin@gmail.com> | 2017-02-07 20:56:08 +0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-05 14:37:21 +0200 |
commit | db1323b77c2b35e5633867fc5e8a79c65f130119 (patch) | |
tree | ed4eee29a937499f0a419bd690ebf952e2ec8009 /scripts/gdb/linux/tasks.py | |
parent | d521e9c384f9737ac22b76b48c787375f0fb988a (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')
0 files changed, 0 insertions, 0 deletions