Author: ae
Date: Sat Dec 16 14:36:21 2017
New Revision: 326898
URL: https://svnweb.freebsd.org/changeset/base/326898
Log:
Fix possible memory leak.
vxlan_ftable entries are sorted in ascending order, due to wrong arguments
order it is possible to stop search before existing element will be found.
Then new element will be allocated in vxlan_ftable_update_locked() and can
be inserted in the list second time or trigger MPASS() assertion with
enabled INVARIANTS.
PR: 224371
MFC after: 1 week
Modified:
head/sys/net/if_vxlan.c
Modified: head/sys/net/if_vxlan.c
==============================================================================
--- head/sys/net/if_vxlan.c Sat Dec 16 14:26:11 2017 (r326897)
+++ head/sys/net/if_vxlan.c Sat Dec 16 14:36:21 2017 (r326898)
@@ -782,7 +782,7 @@ vxlan_ftable_entry_lookup(struct vxlan_softc *sc, cons
hash = VXLAN_SC_FTABLE_HASH(sc, mac);
LIST_FOREACH(fe, &sc->vxl_ftable[hash], vxlfe_hash) {
- dir = vxlan_ftable_addr_cmp(fe->vxlfe_mac, mac);
+ dir = vxlan_ftable_addr_cmp(mac, fe->vxlfe_mac);
if (dir == 0)
return (fe);
if (dir > 0)
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