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| author | Arvind Sankar <nivedita@alum.mit.edu> | 2020-10-25 17:31:15 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-10-30 09:35:03 +0300 |
| commit | 458c0480dcb338d7b72e89b2e88a622965adcea4 (patch) | |
| tree | b51f08386220bcd60c1a909f73f36233057acfe2 /arch/arm64/crypto/sha3-ce-glue.c | |
| parent | 1762818f25f3f99c5083caa13d69e5e5aa2e4b6f (diff) | |
| download | linux-458c0480dcb338d7b72e89b2e88a622965adcea4.tar.xz | |
crypto: hash - Use memzero_explicit() for clearing state
Without the barrier_data() inside memzero_explicit(), the compiler may
optimize away the state-clearing if it can tell that the state is not
used afterwards.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm64/crypto/sha3-ce-glue.c')
| -rw-r--r-- | arch/arm64/crypto/sha3-ce-glue.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/crypto/sha3-ce-glue.c b/arch/arm64/crypto/sha3-ce-glue.c index 9a4bbfc45f40..e5a2936f0886 100644 --- a/arch/arm64/crypto/sha3-ce-glue.c +++ b/arch/arm64/crypto/sha3-ce-glue.c @@ -94,7 +94,7 @@ static int sha3_final(struct shash_desc *desc, u8 *out) if (digest_size & 4) put_unaligned_le32(sctx->st[i], (__le32 *)digest); - *sctx = (struct sha3_state){}; + memzero_explicit(sctx, sizeof(*sctx)); return 0; } |