diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-04-09 12:40:28 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2021-04-19 12:01:40 +0200 |
| commit | 8de8570489d109d969649d67d5f49318128c1fda (patch) | |
| tree | 4ed1dc01c6a0568b9b60e6f71b05e5d4ecabe80f /net/mac80211 | |
| parent | bab7f5ca81de4a2a5693a837bffe1124744028fe (diff) | |
mac80211: aes_cmac: check crypto_shash_setkey() return value
As crypto_shash_setkey() can fail, we should check the return value.
Addresses-Coverity-ID: 1401813 ("Unchecked return value")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.533ff7acf1d2.I034bafa201c4a6823333f8410aeaa60cca5ee9e0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/aes_cmac.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c index b31f1021ad9c..48c04f89de20 100644 --- a/net/mac80211/aes_cmac.c +++ b/net/mac80211/aes_cmac.c @@ -2,6 +2,7 @@ /* * AES-128-CMAC with TLen 16 for IEEE 802.11w BIP * Copyright 2008, Jouni Malinen <j@w1.fi> + * Copyright (C) 2020 Intel Corporation */ #include <linux/kernel.h> @@ -73,8 +74,14 @@ struct crypto_shash *ieee80211_aes_cmac_key_setup(const u8 key[], struct crypto_shash *tfm; tfm = crypto_alloc_shash("cmac(aes)", 0, 0); - if (!IS_ERR(tfm)) - crypto_shash_setkey(tfm, key, key_len); + if (!IS_ERR(tfm)) { + int err = crypto_shash_setkey(tfm, key, key_len); + + if (err) { + crypto_free_shash(tfm); + return ERR_PTR(err); + } + } return tfm; } |