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Miller" , Catalin Marinas , Will Deacon Cc: linux-crypto@vger.kernel.org, Eric Biggers , 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 Message-ID: <20260807070651.228713-8-thuth@redhat.com> In-Reply-To: <20260807070651.228713-1-thuth@redhat.com> References: <20260807070651.228713-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Mimecast-MFC-PROC-ID: 8UIcmoCMUDC2YPygZwzWp-L2rxVneSu8VCLM8tk-hBc_1786086449 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260807_000736_566354_E17501F4 X-CRM114-Status: GOOD ( 12.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Thomas Huth 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 --- 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