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| author | Jesper Juhl <jj@chaosbits.net> | 2011-02-16 13:04:09 +1100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-02-16 13:04:09 +1100 |
| commit | fc9044e2db8c13746cd886d6276028b27ed5c78e (patch) | |
| tree | dd5ef29162ba59ac85e2adf60b1e855123141ecb | |
| parent | 36be070ac600d023ada2ec107ee925f5ac5f902b (diff) | |
| download | linux-fc9044e2db8c13746cd886d6276028b27ed5c78e.tar.bz2 | |
crypto: aesni-intel - Fix remaining leak in rfc4106_set_hash_key
Fix up previous patch that failed to properly fix mem leak in
rfc4106_set_hash_subkey(). This add-on patch; fixes the leak. moves
kfree() out of the error path, returns -ENOMEM rather than -EINVAL when
ablkcipher_request_alloc() fails.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | arch/x86/crypto/aesni-intel_glue.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c index e0135526345d..e0e6340c8dad 100644 --- a/arch/x86/crypto/aesni-intel_glue.c +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -874,19 +874,17 @@ rfc4106_set_hash_subkey(u8 *hash_subkey, const u8 *key, unsigned int key_len) ret = crypto_ablkcipher_setkey(ctr_tfm, key, key_len); if (ret) - goto out; + goto out_free_ablkcipher; + ret = -ENOMEM; req = ablkcipher_request_alloc(ctr_tfm, GFP_KERNEL); - if (!req) { - ret = -EINVAL; + if (!req) goto out_free_ablkcipher; - } req_data = kmalloc(sizeof(*req_data), GFP_KERNEL); - if (!req_data) { - ret = -ENOMEM; + if (!req_data) goto out_free_request; - } + memset(req_data->iv, 0, sizeof(req_data->iv)); /* Clear the data in the hash sub key container to zero.*/ @@ -911,12 +909,11 @@ rfc4106_set_hash_subkey(u8 *hash_subkey, const u8 *key, unsigned int key_len) if (!ret) ret = req_data->result.err; } + kfree(req_data); out_free_request: ablkcipher_request_free(req); - kfree(req_data); out_free_ablkcipher: crypto_free_ablkcipher(ctr_tfm); -out: return ret; } |