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commiteb5e6730dbupstream. Instantiating "cryptd(crc32c)" causes a crypto self-test failure because the crypto_alloc_shash() in alg_test_crc32c() fails. This is because cryptd(crc32c) is an ahash algorithm, not a shash algorithm; so it can only be accessed through the ahash API, unlike shash algorithms which can be accessed through both the ahash and shash APIs. As the test is testing the shash descriptor format which is only applicable to shash algorithms, skip it for ahash algorithms. (Note that it's still important to fix crypto self-test failures even for weird algorithm instantiations like cryptd(crc32c) that no one would really use; in fips_enabled mode unprivileged users can use them to panic the kernel, and also they prevent treating a crypto self-test failure as a bug when fuzzing the kernel.) Fixes:8e3ee85e68("crypto: crc32c - Test descriptor context format") Cc: stable@vger.kernel.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>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.