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| author |  Hailey Mothershead <hailmo@amazon.com>
| 2024-04-15 22:19:15 +0000 |
|---|---|---|
| committer |  Herbert Xu <herbert@gondor.apana.org.au>
| 2024-04-26 17:26:09 +0800 |
| commit | 23e4099bdc3c8381992f9eb975c79196d6755210 (patch) | |
| tree | 8dd796204b3ab2ac7637559cc89fbeb51b1bebe9 /crypto/aead.c | |
| parent | crypto: arm64/aes-ce - Simplify round key load sequence (diff) | |
| download | linux-23e4099bdc3c8381992f9eb975c79196d6755210.tar.gz linux-23e4099bdc3c8381992f9eb975c79196d6755210.tar.bz2 linux-23e4099bdc3c8381992f9eb975c79196d6755210.zip | |
crypto: aead,cipher - zeroize key buffer after use
I.G 9.7.B for FIPS 140-3 specifies that variables temporarily holding
cryptographic information should be zeroized once they are no longer
needed. Accomplish this by using kfree_sensitive for buffers that
previously held the private key.
Signed-off-by: Hailey Mothershead <hailmo@amazon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/aead.c')
| -rw-r--r-- | crypto/aead.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/crypto/aead.c b/crypto/aead.c index 0e75a69189df..cade532413bf 100644 --- a/crypto/aead.c +++ b/crypto/aead.c @@ -36,8 +36,7 @@ static int setkey_unaligned(struct crypto_aead *tfm, const u8 *key, alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1); memcpy(alignbuffer, key, keylen); ret = crypto_aead_alg(tfm)->setkey(tfm, alignbuffer, keylen); - memset(alignbuffer, 0, keylen); - kfree(buffer); + kfree_sensitive(buffer); return ret; } |