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| author | Arnd Bergmann <arnd@arndb.de> | 2023-05-23 10:33:04 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-06-02 18:21:32 +0800 |
| commit | efbc7764c4446566edb76ca05e903b5905673d2e (patch) | |
| tree | 8caf5fa5a8efe30768b778f5aedf4b5393fe1ea8 /drivers/crypto | |
| parent | bb4185e595e476d4ceccd366bca39762823c5a2e (diff) | |
| download | linux-efbc7764c4446566edb76ca05e903b5905673d2e.tar.gz linux-efbc7764c4446566edb76ca05e903b5905673d2e.tar.bz2 linux-efbc7764c4446566edb76ca05e903b5905673d2e.zip | |
crypto: marvell/cesa - Fix type mismatch warning
Commit df8fc4e934c1 ("kbuild: Enable -fstrict-flex-arrays=3") uncovered
a type mismatch in cesa 3des support that leads to a memcpy beyond the
end of a structure:
In function 'fortify_memcpy_chk',
inlined from 'mv_cesa_des3_ede_setkey' at drivers/crypto/marvell/cesa/cipher.c:307:2:
include/linux/fortify-string.h:583:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
583 | __write_overflow_field(p_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This is probably harmless as the actual data that is copied has the correct
type, but clearly worth fixing nonetheless.
Fixes: 4ada48397823 ("crypto: marvell/cesa - add Triple-DES support")
Cc: Kees Cook <keescook@chromium.org>
Cc: Gustavo A. R. Silva" <gustavoars@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/marvell/cesa/cipher.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/marvell/cesa/cipher.c b/drivers/crypto/marvell/cesa/cipher.c index c6f2fa753b7c..0f37dfd42d85 100644 --- a/drivers/crypto/marvell/cesa/cipher.c +++ b/drivers/crypto/marvell/cesa/cipher.c @@ -297,7 +297,7 @@ static int mv_cesa_des_setkey(struct crypto_skcipher *cipher, const u8 *key, static int mv_cesa_des3_ede_setkey(struct crypto_skcipher *cipher, const u8 *key, unsigned int len) { - struct mv_cesa_des_ctx *ctx = crypto_skcipher_ctx(cipher); + struct mv_cesa_des3_ctx *ctx = crypto_skcipher_ctx(cipher); int err; err = verify_skcipher_des3_key(cipher, key); |