From: Ondrej Mosnacek Date: Thu, 25 Jul 2019 10:52:43 +0000 (+0200) Subject: selinux: fix memory leak in policydb_init() X-Git-Tag: v4.9.188~13 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ae190f04359d04333d7c4ff24673f1b76e974260;p=platform%2Fkernel%2Flinux-amlogic.git 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: Reported-by: syzbot+fee3a14d4cdf92646287@syzkaller.appspotmail.com Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Ondrej Mosnacek Signed-off-by: Paul Moore Signed-off-by: Greg Kroah-Hartman --- diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index c483de590ba3..af9cc839856f 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; }