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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2014-06-16 11:02:15 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-06-18 12:40:53 +0100 |
| commit | 6aa8b209f5ef3610d470c519ddd6e6b47e9f6248 (patch) | |
| tree | 8a9d694297be2e760b078adb24c0fda6dbdb36d1 /arch | |
| parent | 8907272849f923a807d33e71e73dfb343bfb34ab (diff) | |
| download | linux-6aa8b209f5ef3610d470c519ddd6e6b47e9f6248.tar.bz2 | |
arm64/crypto: fix data corruption bug in GHASH algorithm
This fixes a bug in the GHASH algorithm resulting in the calculated hash to be
incorrect if the input is presented in chunks whose size is not a multiple of
16 bytes.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: fdd2389457b2 ("arm64/crypto: GHASH secure hash using ARMv8 Crypto Extensions")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/crypto/ghash-ce-glue.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c index b92baf3f68c7..ef6aa69c4e0c 100644 --- a/arch/arm64/crypto/ghash-ce-glue.c +++ b/arch/arm64/crypto/ghash-ce-glue.c @@ -72,6 +72,7 @@ static int ghash_update(struct shash_desc *desc, const u8 *src, partial ? ctx->buf : NULL); kernel_neon_end(); src += blocks * GHASH_BLOCK_SIZE; + partial = 0; } if (len) memcpy(ctx->buf + partial, src, len); |