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apparmor: fix oops in profile_unpack() when policy_db is not present
[GitHub/mt8127/android_kernel_alcatel_ttab.git]
/
security
/
apparmor
/
policy_unpack.c
diff --git
a/security/apparmor/policy_unpack.c
b/security/apparmor/policy_unpack.c
index 6b221354f0aa769f5c3a6f75e65e4be7aff001d8..55ff3eecd368f8203059f06ad43ac145632133b9 100644
(file)
--- a/
security/apparmor/policy_unpack.c
+++ b/
security/apparmor/policy_unpack.c
@@
-571,6
+571,9
@@
static struct aa_profile *unpack_profile(struct aa_ext *e)
error = PTR_ERR(profile->policy.dfa);
profile->policy.dfa = NULL;
goto fail;
+ } else if (!profile->policy.dfa) {
+ error = -EPROTO;
+ goto fail;
}
if (!unpack_u32(e, &profile->policy.start[0], "start"))
/* default start state */