From 8bd9974b6bfcd1e14a001deeca051aed7295559a Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Fri, 18 Nov 2022 11:44:10 -0800 Subject: crypto: x86/aegis128 - fix possible crash with CFI enabled crypto_aegis128_aesni_enc(), crypto_aegis128_aesni_enc_tail(), crypto_aegis128_aesni_dec(), and crypto_aegis128_aesni_dec_tail() 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) Reviewed-by: Sami Tolvanen Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- arch/x86/crypto/aegis128-aesni-asm.S | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'arch/x86/crypto') diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S index b48ddebb4748..cdf3215ec272 100644 --- a/arch/x86/crypto/aegis128-aesni-asm.S +++ b/arch/x86/crypto/aegis128-aesni-asm.S @@ -7,6 +7,7 @@ */ #include +#include #include #define STATE0 %xmm0 @@ -402,7 +403,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_ad) * void crypto_aegis128_aesni_enc(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_enc) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc) FRAME_BEGIN cmp $0x10, LEN @@ -499,7 +500,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_enc) * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_enc_tail) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc_tail) FRAME_BEGIN /* load the state: */ @@ -556,7 +557,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_enc_tail) * void crypto_aegis128_aesni_dec(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_dec) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec) FRAME_BEGIN cmp $0x10, LEN @@ -653,7 +654,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_dec) * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_dec_tail) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec_tail) FRAME_BEGIN /* load the state: */ -- cgit v1.2.3