Author: tuexen
Date: Thu May 7 03:20:01 2020
New Revision: 360764
URL: https://svnweb.freebsd.org/changeset/base/360764
Log:
MFC r357830: Improve handling of memory allocation failure
Don't panic under INVARIANTS when we can't allocate memory for storing
a vtag in time wait.
This issue was found by running syzkaller.
Modified:
stable/11/sys/netinet/sctp_pcb.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/netinet/sctp_pcb.c
==============================================================================
--- stable/11/sys/netinet/sctp_pcb.c Thu May 7 03:17:52 2020
(r360763)
+++ stable/11/sys/netinet/sctp_pcb.c Thu May 7 03:20:01 2020
(r360764)
@@ -4637,9 +4637,6 @@ sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time,
SCTP_MALLOC(twait_block, struct sctp_tagblock *,
sizeof(struct sctp_tagblock), SCTP_M_TIMW);
if (twait_block == NULL) {
-#ifdef INVARIANTS
- panic("Can not alloc tagblock");
-#endif
return;
}
memset(twait_block, 0, sizeof(struct sctp_tagblock));
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