diff options
| author | Ondrej Mosnacek <omosnace@redhat.com> | 2019-07-25 12:52:43 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-06 18:28:28 +0200 |
| commit | b65cc16ce2a77793aab81b6fc29f6caf4ee3728a (patch) | |
| tree | 5ca11bcd1bf4eb2a1e2bf046679cf531a722d149 /security/selinux | |
| parent | 1579cc8253b72f17fe56960c0f4a020c149870bd (diff) | |
selinux: fix memory leak in policydb_init()
commit 45385237f65aeee73641f1ef737d7273905a233f upstream.
Since roles_init() adds some entries to the role hash table, we need to
destroy also its keys/values on error, otherwise we get a memory leak in
the error path.
Cc: <stable@vger.kernel.org>
Reported-by: syzbot+fee3a14d4cdf92646287@syzkaller.appspotmail.com
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'security/selinux')
| -rw-r--r-- | security/selinux/ss/policydb.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index 965a55eacaba..01fbbbf89f41 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -266,6 +266,8 @@ static int rangetr_cmp(struct hashtab *h, const void *k1, const void *k2) return v; } +static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap); + /* * Initialize a policy database structure. */ @@ -313,8 +315,10 @@ static int policydb_init(struct policydb *p) out: hashtab_destroy(p->filename_trans); hashtab_destroy(p->range_tr); - for (i = 0; i < SYM_NUM; i++) + for (i = 0; i < SYM_NUM; i++) { + hashtab_map(p->symtab[i].table, destroy_f[i], NULL); hashtab_destroy(p->symtab[i].table); + } return rc; } |