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nwfilter: fix crash when adding non-existing nwfilter

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Adding non-existing nwfilter to a network interface device without any
nwfilter specified will crash libvirt daemon with segfault. The reason is
that the nwfilter is not found an libvirt will try to restore old
nwfilter configuration but there is no nwfilter specified.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2014-12-01 17:23:00 +01:00
parent 82bde4261d
commit d98ad8dd0c
1 changed files with 1 additions and 1 deletions
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2
src/conf/nwfilter_conf.c
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@ -2778,7 +2778,7 @@ virNWFilterObjFindByName(virNWFilterObjListPtr nwfilters, const char *name)
for (i = 0; i < nwfilters->count; i++) {
virNWFilterObjLock(nwfilters->objs[i]);
if (STREQ(nwfilters->objs[i]->def->name, name))
if (STREQ_NULLABLE(nwfilters->objs[i]->def->name, name))
return nwfilters->objs[i];
virNWFilterObjUnlock(nwfilters->objs[i]);
}