From: Thomas Huth <thuth@redhat.com>
To: Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>
Cc: linux-crypto@vger.kernel.org, Eric Biggers <ebiggers@kernel.org>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 07/10] crypto: arm64/aes-neonbs - clear the crypto_aes_ctx when done
Date: Fri, 7 Aug 2026 09:06:34 +0200 [thread overview]
Message-ID: <20260807070651.228713-8-thuth@redhat.com> (raw)
In-Reply-To: <20260807070651.228713-1-thuth@redhat.com>
From: Thomas Huth <thuth@redhat.com>
Clear the crypto_aes_ctx structure via __cleanup(aes_zeroize_ctx) when
we're done with it to avoid that key data could leak on the stack.
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
arch/arm64/crypto/aes-neonbs-glue.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/crypto/aes-neonbs-glue.c b/arch/arm64/crypto/aes-neonbs-glue.c
index 5bcbac9798931..c2f3eac0ca661 100644
--- a/arch/arm64/crypto/aes-neonbs-glue.c
+++ b/arch/arm64/crypto/aes-neonbs-glue.c
@@ -247,7 +247,7 @@ static int aesbs_xts_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct aesbs_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- struct crypto_aes_ctx rk;
+ struct crypto_aes_ctx rk __cleanup(aes_zeroize_ctx);
int err;
err = xts_verify_key(tfm, in_key, key_len);
--
2.55.0
next prev parent reply other threads:[~2026-08-07 7:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-07 7:06 [PATCH v4 00/10] crypto: Provide a function for zeroizing crypto_aes_ctx Thomas Huth
2026-08-07 7:06 ` [PATCH v4 01/10] crypto: Provide a wrapper " Thomas Huth
2026-08-07 7:06 ` [PATCH v4 02/10] crypto: aspeed - clear the crypto_aes_ctx when done Thomas Huth
2026-08-07 7:06 ` [PATCH v4 03/10] crypto: inside-secure/eip93 " Thomas Huth
2026-08-07 7:06 ` [PATCH v4 04/10] crypto: padlock-aes " Thomas Huth
2026-08-07 7:06 ` [PATCH v4 05/10] crypto: sa2ul " Thomas Huth
2026-08-07 7:06 ` [PATCH v4 06/10] crypto: arm/aes-neonbs " Thomas Huth
2026-08-07 7:06 ` Thomas Huth [this message]
2026-08-07 7:06 ` [PATCH v4 08/10] crypto: qat - zeroize crypto_aes_ctx with __cleanup(aes_zeroize_ctx) Thomas Huth
2026-08-07 7:06 ` [PATCH v4 09/10] crypto: safexcel - Rework cleanup of sensitive structs in safexcel_aead_setkey Thomas Huth
2026-08-07 7:40 ` Antoine Tenart
2026-08-07 8:02 ` Antoine Tenart
2026-08-07 7:06 ` [PATCH v4 10/10] crypto: safexcel - zeroize crypto_aes_ctx with __cleanup(aes_zeroize_ctx) Thomas Huth
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