]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
crypto: arm64/aes-neonbs - fix crash with CFI enabled
authorEric Biggers <ebiggers@google.com>
Mon, 27 Feb 2023 06:32:23 +0000 (22:32 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 11 May 2023 14:10:52 +0000 (23:10 +0900)
commitcf99105299c06631df75bc4fc1a1f3b22493e3cf
tree21bda8934e3a84abc09a30bfd02b6263015f485d
parent162f9daf0c22480f88b24fd46d16abae46c10fce
crypto: arm64/aes-neonbs - fix crash with CFI enabled

commit 47446d7cd42358ca7d7a544f2f7823db03f616ff upstream.

aesbs_ecb_encrypt(), aesbs_ecb_decrypt(), aesbs_xts_encrypt(), and
aesbs_xts_decrypt() 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 doesn't happen to optimize out the indirect calls.

Fixes: c50d32859e70 ("arm64: Add types to indirect called assembly functions")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm64/crypto/aes-neonbs-core.S