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selinux: fix handling of uninitialized selinux state in get_bools/classes 

If security_get_bools/classes are called before the selinux state is
initialized (i.e. before first policy load), then they should just
return immediately with no booleans/classes.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Stephen Smalley 2018-03-20 11:59:10 -04:00 committed by Paul Moore
parent d3cc2cd7c8
commit 274f62e1e5
1 changed files with 13 additions and 0 deletions
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13
security/selinux/ss/services.c
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@ -2811,6 +2811,13 @@ int security_get_bools(struct selinux_state *state,
struct policydb *policydb;
int i, rc;
if (!state->initialized) {
*len = 0;
*names = NULL;
*values = NULL;
return 0;
}
read_lock(&state->ss->policy_rwlock);
policydb = &state->ss->policydb;
@ -3141,6 +3148,12 @@ int security_get_classes(struct selinux_state *state,
struct policydb *policydb = &state->ss->policydb;
int rc;
if (!state->initialized) {
*nclasses = 0;
*classes = NULL;
return 0;
}
read_lock(&state->ss->policy_rwlock);
rc = -ENOMEM;