| commit | b61907bb42409adf9b3120f741af7c57dd7e3db2 | [log] [tgz] |
|---|---|---|
| author | Herbert Xu <herbert@gondor.apana.org.au> | Mon Oct 09 23:30:02 2017 +0800 |
| committer | Herbert Xu <herbert@gondor.apana.org.au> | Wed Oct 11 00:34:07 2017 +0800 |
| tree | 5e2e631bddf0f13336e2c52ac93cbce361bfcbd7 | |
| parent | 0cabf2af6f5ac3c88cb106c4e06087a5a39b8e1e [diff] |
crypto: shash - Fix zero-length shash ahash digest crash The shash ahash digest adaptor function may crash if given a zero-length input together with a null SG list. This is because it tries to read the SG list before looking at the length. This patch fixes it by checking the length first. Cc: <stable@vger.kernel.org> Reported-by: Stephan Müller<smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Stephan Müller <smueller@chronox.de>