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crypto: rsa-pkcs1pad - fix buffer overread in pkcs1pad_verify_complete()
commit a24611e upstream. Before checking whether the expected digest_info is present, we need to check that there are enough bytes remaining. Fixes: a49de37 ("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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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