From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 10CD74C10DD; Wed, 30 Sep 2026 18:38:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790793491; cv=none; b=AHZABFJFN1vZJEekvO50R/5ys8tol6rmEG3Ls2yS1rk9PD8Er4xjPRFK40JN1NfaXVNTTYXsAy9x5sk6wrrDY+QjyLBXIq/gtFegJ73IVltSFwoZHVIRrd7gZX4meQTk07tgcFoabI01hRXZgCwb7+3C6Fp/YrmJX+b0huE1TQs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790793491; c=relaxed/simple; bh=DX9iq7lqAeXU58Xa2ncN+mc9VXjAo37WCTzh4TkRRtU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FmDFRk/Sv2OWC5dNDmWczGGwf+s3uHcKuFzh1GXpD2gPmkJ/TI0S14G2pazBUHv93yl3Po7ZS05pDASsf0DnvlyGAAWMKLPmEGe00H/w1w16bPHlHj/eyvNsD0Tc28bYDTNEEw6ffPQtUq5IXn0g6azj6HL01i7eKrm/mv5sFl8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=K8lKfP2+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="K8lKfP2+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7FBC1F000FF; Wed, 30 Sep 2026 18:38:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790793489; bh=Lz5WVigjeGePC4D4W3tlcVgF7jPnJf2uC5whwJiHO+I=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=K8lKfP2+HFB5zcQ+P8Jjai+cWPRQwuG2ancnZ9Dz+TR4H6qLQn8su+z5LcmbGy/6k Zz2H8KynQeDb/FyA7reOLOQorOTb2Nnubeq+HRr3pZk+6OQh6U4ChOEzfDC3UJvgMn d17mXSs7GVTEAxtvkQVcExGpEXrww6uzRb2TN1Kw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Holger Dengler , Harald Freudenberger , Herbert Xu Subject: [PATCH 6.18 218/395] crypto: s390/hmac - Generate intermediate CV for API partial block handling Date: Wed, 30 Sep 2026 17:28:00 +0200 Message-ID: <20260930152345.389658796@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152340.591469096@linuxfoundation.org> References: <20260930152340.591469096@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Holger Dengler commit 10396a2d6d41d594975b6ece712278570c3c970c upstream. The API partial block handling requires a intermediate chaining value (CV). The internal function hash_data() sets the function code correctly, so also call cpacf_kimd() instruction for intermediate CV generation, as cpacf_klmd() always generate the final hash value. Cc: stable@vger.kernel.org # 6.15+ Fixes: 08811169ac01 ("crypto: s390/hmac - Use API partial block handling") Signed-off-by: Holger Dengler Reviewed-by: Harald Freudenberger Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- arch/s390/crypto/hmac_s390.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/arch/s390/crypto/hmac_s390.c +++ b/arch/s390/crypto/hmac_s390.c @@ -151,7 +151,10 @@ static int hash_data(const u8 *in, unsig #undef PARAM_INIT - cpacf_klmd(func, ¶m, in, inlen); + if (final) + cpacf_klmd(func, ¶m, in, inlen); + else + cpacf_kimd(func, ¶m, in, inlen); memcpy(digest, ¶m, digestsize);