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(parent: cf4fe04) | patch
crypto: rsa-pkcs1pad - fix buffer overread in pkcs1pad_verify_complete()
authorEric Biggers <ebiggers@google.com>
Wed, 19 Jan 2022 00:13:05 +0000 (16:13 -0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Mon, 31 Jan 2022 00:21:44 +0000 (11:21 +1100)
commiteb0f93d8bad8a415741aa00cd933bcdb813d578f
tree0036f840ac3d82bef06c15abefac3ca522d31462tree | snapshot
parentcf4fe0482ba46804bba0302ab0636f0d9f9b89fecommit | diff
crypto: rsa-pkcs1pad - fix buffer overread in pkcs1pad_verify_complete()

Before checking whether the expected digest_info is present, we need to
check that there are enough bytes remaining.

Fixes: 9ff67de06aba ("crypto: Add hash param to pkcs1pad")
Cc: <stable@vger.kernel.org> # v4.6+
Cc: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/rsa-pkcs1pad.c diff | blob | history
Linux Kernel Source Tree.