tree 67e18e631fd217f787b39a821046b77356022e6f
parent 5ecf8ef9103cb018cbd82b6eace529ff4c5b5c66
author Ondrej Mosnáček <omosnacek@gmail.com> 1474620452 +0200
committer Herbert Xu <herbert@gondor.apana.org.au> 1475418712 +0800

crypto: gcm - Fix IV buffer size in crypto_gcm_setkey

The cipher block size for GCM is 16 bytes, and thus the CTR transform
used in crypto_gcm_setkey() will also expect a 16-byte IV. However,
the code currently reserves only 8 bytes for the IV, causing
an out-of-bounds access in the CTR transform. This patch fixes
the issue by setting the size of the IV buffer to 16 bytes.

Fixes: 84c911523020 ("[CRYPTO] gcm: Add support for async ciphers")
Signed-off-by: Ondrej Mosnacek <omosnacek@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>