sctp: call iov_iter_revert() after sending ABORT
The user msg is also copied to the abort packet when doing SCTP_ABORT in
sctp_sendmsg_check_sflags(). When SCTP_SENDALL is set, iov_iter_revert()
should have been called for sending abort on the next asoc with copying
this msg. Otherwise, memcpy_from_msg() in sctp_make_abort_user() will
fail and return error.
Fixes: 4910280503
("sctp: add support for snd flag SCTP_SENDALL process in sendmsg")
Reported-by: Ying Xu <yinxu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
692c31bd40
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901efe1231
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@ -1866,6 +1866,7 @@ static int sctp_sendmsg_check_sflags(struct sctp_association *asoc,
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pr_debug("%s: aborting association:%p\n", __func__, asoc);
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pr_debug("%s: aborting association:%p\n", __func__, asoc);
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sctp_primitive_ABORT(net, asoc, chunk);
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sctp_primitive_ABORT(net, asoc, chunk);
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iov_iter_revert(&msg->msg_iter, msg_len);
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return 0;
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return 0;
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}
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}
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