Author: tuexen
Date: Sat May 4 10:06:17 2019
New Revision: 347091
URL: https://svnweb.freebsd.org/changeset/base/347091
Log:
MFC r343960:
Fix a locking issue in the IPPROTO_SCTP level SCTP_PEER_ADDR_THLDS socket
option. The problem affects only setsockopt with invalid parameters.
This issue was found by syzkaller.
Modified:
stable/12/sys/netinet/sctp_usrreq.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/netinet/sctp_usrreq.c
==============================================================================
--- stable/12/sys/netinet/sctp_usrreq.c Sat May 4 10:04:00 2019
(r347090)
+++ stable/12/sys/netinet/sctp_usrreq.c Sat May 4 10:06:17 2019
(r347091)
@@ -6335,6 +6335,9 @@ sctp_setopt(struct socket *so, int optname, void *optv
}
}
if (thlds->spt_pathcpthld != 0xffff) {
+ if (stcb != NULL) {
+ SCTP_TCB_UNLOCK(stcb);
+ }
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
SCTP_FROM_SCTP_USRREQ, error);
break;
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