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selinux: ensure we cleanup the internal AVC counters on error in avc_update() 

In AVC update we don't call avc_node_kill() when avc_xperms_populate()
fails, resulting in the avc->avc_cache.active_nodes counter having a
false value.  In last patch this changes was missed , so correcting it.

Fixes: fa1aa143ac ("selinux: extended permissions for ioctls")
Signed-off-by: Jaihind Yadav <jaihindyadav@codeaurora.org>
Signed-off-by: Ravi Kumar Siddojigari <rsiddoji@codeaurora.org>
[PM: merge fuzz, minor description cleanup]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Jaihind Yadav 2019-12-17 17:25:47 +05:30 committed by Paul Moore
parent 5c108d4e18
commit 030b995ad9
1 changed files with 1 additions and 1 deletions
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2
security/selinux/avc.c
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@ -891,7 +891,7 @@ static int avc_update_node(struct selinux_avc *avc,
if (orig->ae.xp_node) { if (orig->ae.xp_node) {
rc = avc_xperms_populate(node, orig->ae.xp_node); rc = avc_xperms_populate(node, orig->ae.xp_node);
if (rc) { if (rc) {
kmem_cache_free(avc_node_cachep, node); avc_node_kill(avc, node);
goto out_unlock; goto out_unlock;
} }
} }