From: Sylvain Munaut Date: Thu, 2 Aug 2012 16:12:59 +0000 (-0700) Subject: libceph: fix crypto key null deref, memory leak X-Git-Tag: v3.6-rc1~7^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f0666b1ac875ff32fe290219b150ec62eebbe10e;p=platform%2Fupstream%2Fkernel-adaptation-pc.git libceph: fix crypto key null deref, memory leak Avoid crashing if the crypto key payload was NULL, as when it was not correctly allocated and initialized. Also, avoid leaking it. Signed-off-by: Sylvain Munaut Signed-off-by: Sage Weil Reviewed-by: Alex Elder --- diff --git a/net/ceph/crypto.c b/net/ceph/crypto.c index b780cb7..9da7fdd 100644 --- a/net/ceph/crypto.c +++ b/net/ceph/crypto.c @@ -466,6 +466,7 @@ void ceph_key_destroy(struct key *key) { struct ceph_crypto_key *ckey = key->payload.data; ceph_crypto_key_destroy(ckey); + kfree(ckey); } struct key_type key_type_ceph = { diff --git a/net/ceph/crypto.h b/net/ceph/crypto.h index 1919d15..3572dc5 100644 --- a/net/ceph/crypto.h +++ b/net/ceph/crypto.h @@ -16,7 +16,8 @@ struct ceph_crypto_key { static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key) { - kfree(key->key); + if (key) + kfree(key->key); } extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,