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| author | Micah Morton <mortonm@chromium.org> | 2019-09-17 11:27:05 -0700 |
|---|---|---|
| committer | Micah Morton <mortonm@chromium.org> | 2019-09-17 11:27:05 -0700 |
| commit | 21ab8580b383f27b7f59b84ac1699cb26d6c3d69 (patch) | |
| tree | 7d9c05424305e24e211aabdbdd1c5550bcbbc2fb /security/safesetid/securityfs.c | |
| parent | 609488bc979f99f805f34e9a32c1e3b71179d10b (diff) | |
| download | linux-21ab8580b383f27b7f59b84ac1699cb26d6c3d69.tar.gz | |
LSM: SafeSetID: Stop releasing uninitialized ruleset
The first time a rule set is configured for SafeSetID, we shouldn't be trying to release the previously configured ruleset, since there isn't one. Currently, the pointer that would point to a previously configured ruleset is uninitialized on first rule set configuration, leading to a crash when we try to call release_ruleset with that pointer. Acked-by: Jann Horn <jannh@google.com> Signed-off-by: Micah Morton <mortonm@chromium.org>
Diffstat (limited to 'security/safesetid/securityfs.c')
| -rw-r--r-- | security/safesetid/securityfs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/security/safesetid/securityfs.c b/security/safesetid/securityfs.c index d568e17dd773..74a13d432ed8 100644 --- a/security/safesetid/securityfs.c +++ b/security/safesetid/securityfs.c @@ -187,7 +187,8 @@ out_free_rule: out_free_buf: kfree(buf); out_free_pol: - release_ruleset(pol); + if (pol) + release_ruleset(pol); return err; } |