Author: ae
Date: Thu May 9 07:57:33 2019
New Revision: 347383
URL: https://svnweb.freebsd.org/changeset/base/347383
Log:
In mld_v2_cancel_link_timers() check number of references and disconnect
inm before releasing the last reference. This fixes possible panics and
assertion.
PR: 237329
Reviewed by: mmacy
MFC after: 2 weeks
Modified:
head/sys/netinet6/mld6.c
Modified: head/sys/netinet6/mld6.c
==============================================================================
--- head/sys/netinet6/mld6.c Thu May 9 07:34:15 2019 (r347382)
+++ head/sys/netinet6/mld6.c Thu May 9 07:57:33 2019 (r347383)
@@ -1708,6 +1708,8 @@ mld_v2_cancel_link_timers(struct mld_ifsoftc *mli)
* version, we need to release the final
* reference held for issuing the INCLUDE {}.
*/
+ if (inm->in6m_refcount == 1)
+ in6m_disconnect_locked(&inmh, inm);
in6m_rele_locked(&inmh, inm);
/* FALLTHROUGH */
case MLD_G_QUERY_PENDING_MEMBER:
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