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authorEric Biggers <ebiggers@google.com>2022-11-18 11:44:14 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2022-11-25 17:39:19 +0800
commit19940ebbb59c12146d05c5f8acd873197b290648 (patch)
tree987dddfc44f71eec4175b5b466f37e6d6770fe53 /COPYING
parent32f34bf7e44eeaa241fb845d6f52af5104bc30fd (diff)
crypto: x86/sha256 - fix possible crash with CFI enabled
sha256_transform_ssse3(), sha256_transform_avx(), sha256_transform_rorx(), and sha256_ni_transform() are called via indirect function calls. Therefore they need to use SYM_TYPED_FUNC_START instead of SYM_FUNC_START to cause their type hashes to be emitted when the kernel is built with CONFIG_CFI_CLANG=y. Otherwise, the code crashes with a CFI failure (if the compiler didn't happen to optimize out the indirect calls). Fixes: ccace936eec7 ("x86: Add types to indirectly called assembly functions") Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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