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mcast: fix leaked igmp packets on multicast cleanup

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When we release a multicast address (e.g. on interface shutdown) we may
still have packets queued in inm_scq. We have to free those, or we'll
leak memory.

Reviewed by:	glebius
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D43033
This commit is contained in:
Kristof Provost 2023-12-13 13:32:08 +01:00 committed by Franco Fichtner
parent 48570316b7
commit e81800f6a8
1 changed files with 1 additions and 0 deletions
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sys/netinet/in_mcast.c
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@ -1181,6 +1181,7 @@ inm_purge(struct in_multi *inm)
free(ims, M_IPMSOURCE);
inm->inm_nsrc--;
}
mbufq_drain(&inm->inm_scq);
}
/*