From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4CA04380FC7 for ; Fri, 7 Aug 2026 07:07:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786086455; cv=none; b=aO7W8ZOA9tbs7GtIhp9V81NV9raO4XYIIOUS2uTvm9tu+Jjua7vzElmlU6F43FtS7spBZHv6xHFuN3NHJaV8xl8n4exmR2925z6Za/EFVa8260XQV094ZMRRcYem3fzjw4UBteTrf4/WUgw7sx+R7vw9up0sFjulnQ5qfUf0Srw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786086455; c=relaxed/simple; bh=b5aZNIDCHkvfoWtjbjEcQ7aD9yQG5oyRD+0JfQ4XMl8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lBjxUCqkOZ1hxKSyXbNvHpP/+D8evGPIGSI8p2xXfZ9PtyQT4zjLe9kuFSzWkcwUQMG8KqjblwHu8c8L3ZtCg4z5aE9TasVSHFyYKN6oqQp5o/taagzfwqI2+J/dwooPifV7QMt6p8xGSz0pgBnLKZigm2Xihkyx8bNWp8zkhmw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=FeK4vhcA; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="FeK4vhcA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1786086453; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Vqj916x7IWEPwY8/O5oc6WAr80znZJ+nk/7CTdbfDAQ=; b=FeK4vhcAgs4FhQnP5LW2WmwCIOcqBVa14LeluOmsfSxitNcSQXMNpe7Y1UFvvHxGikTG/2 mAOyAuWlkPeXPY9EtbZGoyjOjAe21L+gnKJr0cWFNyG26gcFdTjUCPgHlnoGqLO2pEwVrA UO2OoahT/TX5E/XV9sVa7bBQBMItYfU= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-76-yuNjvHM6PTa9_E8jKbh68g-1; Fri, 07 Aug 2026 03:07:27 -0400 X-MC-Unique: yuNjvHM6PTa9_E8jKbh68g-1 X-Mimecast-MFC-AGG-ID: yuNjvHM6PTa9_E8jKbh68g_1786086446 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C186A1800471; Fri, 7 Aug 2026 07:07:24 +0000 (UTC) Received: from thuth-p1g4.redhat.corp (headnet03.pony-001.prod.iad2.dc.redhat.com [10.2.32.114]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 0DF841956094; Fri, 7 Aug 2026 07:07:20 +0000 (UTC) From: Thomas Huth To: Herbert Xu , "David S. Miller" , Russell King Cc: linux-crypto@vger.kernel.org, Eric Biggers , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 06/10] crypto: arm/aes-neonbs - clear the crypto_aes_ctx when done Date: Fri, 7 Aug 2026 09:06:33 +0200 Message-ID: <20260807070651.228713-7-thuth@redhat.com> In-Reply-To: <20260807070651.228713-1-thuth@redhat.com> References: <20260807070651.228713-1-thuth@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 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/arm/crypto/aes-neonbs-glue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/crypto/aes-neonbs-glue.c b/arch/arm/crypto/aes-neonbs-glue.c index c49ddafc54f34..f0c8bfd2ac8fc 100644 --- a/arch/arm/crypto/aes-neonbs-glue.c +++ b/arch/arm/crypto/aes-neonbs-glue.c @@ -60,7 +60,7 @@ static int aesbs_setkey(struct crypto_skcipher *tfm, const u8 *in_key, unsigned int key_len) { struct aesbs_ctx *ctx = crypto_skcipher_ctx(tfm); - struct crypto_aes_ctx rk; + struct crypto_aes_ctx rk __cleanup(aes_zeroize_ctx); int err; err = aes_expandkey(&rk, in_key, key_len); -- 2.55.0