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| author | Tudor-Dan Ambarus <tudor.ambarus@microchip.com> | 2018-03-23 12:42:24 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-03-31 01:33:14 +0800 |
| commit | 8f0691fc51e1ce06ccfccb7336320331a9521b9d (patch) | |
| tree | a5144dd569042089424e9d3f0b00e3e5a2362b37 /drivers/crypto/talitos.c | |
| parent | ab6815d028f330ae9490bff01689cd234506fe97 (diff) | |
| download | linux-8f0691fc51e1ce06ccfccb7336320331a9521b9d.tar.gz linux-8f0691fc51e1ce06ccfccb7336320331a9521b9d.tar.bz2 linux-8f0691fc51e1ce06ccfccb7336320331a9521b9d.zip | |
crypto: talitos - don't leak pointers to authenc keys
In talitos's aead_setkey we save pointers to the authenc keys in a
local variable of type struct crypto_authenc_keys and we don't
zeroize it after use. Fix this and don't leak pointers to the
authenc keys.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/talitos.c')
| -rw-r--r-- | drivers/crypto/talitos.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 3cfd53a00dc1..7cebf0a6ffbc 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -904,10 +904,12 @@ static int aead_setkey(struct crypto_aead *authenc, ctx->dma_key = dma_map_single(dev, ctx->key, ctx->keylen, DMA_TO_DEVICE); + memzero_explicit(&keys, sizeof(keys)); return 0; badkey: crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN); + memzero_explicit(&keys, sizeof(keys)); return -EINVAL; } |