Commit 5b0e7310 authored by Stephen Smalley's avatar Stephen Smalley Committed by Paul Moore

selinux: fix GPF on invalid policy

levdatum->level can be NULL if we encounter an error while loading
the policy during sens_read prior to initializing it.  Make sure
sens_destroy handles that case correctly.

Reported-by: syzbot+6664500f0f18f07a5c0e@syzkaller.appspotmail.com
Signed-off-by: default avatarStephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: default avatarPaul Moore <paul@paul-moore.com>
parent ee1a84fd
...@@ -732,6 +732,7 @@ static int sens_destroy(void *key, void *datum, void *p) ...@@ -732,6 +732,7 @@ static int sens_destroy(void *key, void *datum, void *p)
kfree(key); kfree(key);
if (datum) { if (datum) {
levdatum = datum; levdatum = datum;
if (levdatum->level)
ebitmap_destroy(&levdatum->level->cat); ebitmap_destroy(&levdatum->level->cat);
kfree(levdatum->level); kfree(levdatum->level);
} }
......
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