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authorJohn Johansen <john.johansen@canonical.com>2016-08-31 21:10:06 -0700
committerJames Morris <james.l.morris@oracle.com>2016-11-21 18:01:28 +1100
commit3d40658c977769ce2138f286cf131537bf68bdfe (patch)
treea4413e2582ba4d840edb2e21e030e85d679f1b67 /security/apparmor
parent9c763584b7c8911106bb77af7e648bef09af9d80 (diff)
downloadlinux-stericsson-3d40658c977769ce2138f286cf131537bf68bdfe.tar.gz
apparmor: fix change_hat not finding hat after policy replacement
After a policy replacement, the task cred may be out of date and need to be updated. However change_hat is using the stale profiles from the out of date cred resulting in either: a stale profile being applied or, incorrect failure when searching for a hat profile as it has been migrated to the new parent profile. Fixes: 01e2b670aa898a39259bc85c78e3d74820f4d3b6 (failure to find hat) Fixes: 898127c34ec03291c86f4ff3856d79e9e18952bc (stale policy being applied) Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1000287 Cc: stable@vger.kernel.org Signed-off-by: John Johansen <john.johansen@canonical.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'security/apparmor')
-rw-r--r--security/apparmor/domain.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index fc3036b34e51..a4d90aa1045a 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -621,8 +621,8 @@ int aa_change_hat(const char *hats[], int count, u64 token, bool permtest)
/* released below */
cred = get_current_cred();
cxt = cred_cxt(cred);
- profile = aa_cred_profile(cred);
- previous_profile = cxt->previous;
+ profile = aa_get_newest_profile(aa_cred_profile(cred));
+ previous_profile = aa_get_newest_profile(cxt->previous);
if (unconfined(profile)) {
info = "unconfined";
@@ -718,6 +718,8 @@ audit:
out:
aa_put_profile(hat);
kfree(name);
+ aa_put_profile(profile);
+ aa_put_profile(previous_profile);
put_cred(cred);
return error;