Author: ae
Date: Fri May 24 08:40:37 2019
New Revision: 348232
URL: https://svnweb.freebsd.org/changeset/base/348232
Log:
MFC r347383:
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
Modified:
stable/12/sys/netinet6/mld6.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/netinet6/mld6.c
==============================================================================
--- stable/12/sys/netinet6/mld6.c Fri May 24 06:49:47 2019
(r348231)
+++ stable/12/sys/netinet6/mld6.c Fri May 24 08:40:37 2019
(r348232)
@@ -1704,6 +1704,8 @@ 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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