| commit | 50d2e6dc1f83db0563c7d6603967bf9585ce934b | |
| author | Ondrej Mosnáček <omosnacek@gmail.com> | |
| Fri, 23 Sep 2016 08:47:32 +0000 (23 10:47 +0200) | ||
| committer | Herbert Xu <herbert@gondor.apana.org.au> | |
| Sun, 2 Oct 2016 14:31:52 +0000 (2 22:31 +0800) | ||
| tree | 67e18e631fd217f787b39a821046b77356022e6f | treesnapshot (tar.gz zip) |
| parent | 5ecf8ef9103cb018cbd82b6eace529ff4c5b5c66 | commitdiff |
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>
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>
| crypto/gcm.c | diffblobblamehistory |