Author: tuexen
Date: Wed Feb 12 17:05:10 2020
New Revision: 357830
URL: https://svnweb.freebsd.org/changeset/base/357830
Log:
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.
MFC after: 1 week
Modified:
head/sys/netinet/sctp_pcb.c
Modified: head/sys/netinet/sctp_pcb.c
==============================================================================
--- head/sys/netinet/sctp_pcb.c Wed Feb 12 17:02:15 2020 (r357829)
+++ head/sys/netinet/sctp_pcb.c Wed Feb 12 17:05:10 2020 (r357830)
@@ -4634,9 +4634,6 @@ 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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