sctp: asconf's process should verify address parameter is in the beginning

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in sctp_process_asconf(), we get address parameter from the beginning of
the addip params. but we never check if it's really there. if the addr
param is not there, it still can pass sctp_verify_asconf(), then to be
handled by sctp_process_asconf(), it will not be safe.

so add a code in sctp_verify_asconf() to check the address parameter is in
the beginning, or return false to send abort.

note that this can also detect multiple address parameters, and reject it.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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lucien 2015-08-27 16:26:34 +08:00 • committed by David S. Miller

parent fbe4307e9f

commit ce7b4ccc4f

1 changed files with 7 additions and 0 deletions

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net/sctp/sm_make_chunk.c

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