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 50F1A34FF79; Tue, 16 Jun 2026 18:33:18 +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=1781634799; cv=none; b=p9w35Q2AzhfMcAoyDVMV/O1XsNoUbgyVbgBNL/NBPVLEpaZDt4+hwhlckeDARclarSS4ZaTX6xB4cbwZnYcvOHcARnn90TdDMO2bf7WOSopvVDFIbCgigKn/COUXww4+f/g3Z88/Zn8ifIyuQonfGGk4PjGzfEyFm7Ilz0oTmL0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781634799; c=relaxed/simple; bh=wz1np52QW1NSKTom4y2vBFXAfy0Tb4MnSkuU30btq4o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lTRy8FOYdDtCpfdLzonAFHPN9JnrEa/6IQtXFYLHGBxZv3SHaLEO0ZRekVgjsTOpbOrk1xj8Pigi+n6LzXyJYi84yPArB12tYajyjdYLC9WjeLBLA8AGRT933pwKHAZADF94n4Ypa0B3IImi2RF2vH2eQYrCmpgrIKiUm4T/1qM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=L3Qhgnq2; 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="L3Qhgnq2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 370AD1F000E9; Tue, 16 Jun 2026 18:33:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1781634798; bh=wmCwcb81R3qUjkB9CxwRvZp6PqKykiEZ3GLKk9dIjWY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=L3Qhgnq2NhWrCK4ELYtSJ9qxqFu5iKtPMiLXpkOznyR5SEegZI1EOTpdV4OwZ/BQL +ofz6bFQKbHzLU6Y065ayG87q4mfUxlzhn0Vi4pW9ZWfQHZSM5CiGK6DIOkGB4hKjc AYvVoEs71BG/eP8en+nnlIEG6ZqIkiSHVd2IlVSA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thorsten Blum , Herbert Xu , Sasha Levin Subject: [PATCH 5.15 301/411] crypto: caam - guard HMAC key hex dumps in hash_digest_key Date: Tue, 16 Jun 2026 20:28:59 +0530 Message-ID: <20260616145117.141774778@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260616145100.376842714@linuxfoundation.org> References: <20260616145100.376842714@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thorsten Blum [ Upstream commit 177730a273b18e195263ed953853273e901b5064 ] Use print_hex_dump_devel() for dumping sensitive HMAC key bytes in hash_digest_key() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG is enabled. Fixes: 045e36780f11 ("crypto: caam - ahash hmac support") Fixes: 3f16f6c9d632 ("crypto: caam/qi2 - add support for ahash algorithms") Cc: stable@vger.kernel.org Signed-off-by: Thorsten Blum Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/caam/caamalg_qi2.c | 4 ++-- drivers/crypto/caam/caamhash.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) --- a/drivers/crypto/caam/caamalg_qi2.c +++ b/drivers/crypto/caam/caamalg_qi2.c @@ -3264,7 +3264,7 @@ static int hash_digest_key(struct caam_h dpaa2_fl_set_addr(out_fle, key_dma); dpaa2_fl_set_len(out_fle, digestsize); - print_hex_dump_debug("key_in@" __stringify(__LINE__)": ", + print_hex_dump_devel("key_in@" __stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, key, *keylen, 1); print_hex_dump_debug("shdesc@" __stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), @@ -3284,7 +3284,7 @@ static int hash_digest_key(struct caam_h /* in progress */ wait_for_completion(&result.completion); ret = result.err; - print_hex_dump_debug("digested key@" __stringify(__LINE__)": ", + print_hex_dump_devel("digested key@" __stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, key, digestsize, 1); } --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -390,7 +390,7 @@ static int hash_digest_key(struct caam_h append_seq_store(desc, digestsize, LDST_CLASS_2_CCB | LDST_SRCDST_BYTE_CONTEXT); - print_hex_dump_debug("key_in@"__stringify(__LINE__)": ", + print_hex_dump_devel("key_in@"__stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, key, *keylen, 1); print_hex_dump_debug("jobdesc@"__stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), @@ -405,7 +405,7 @@ static int hash_digest_key(struct caam_h wait_for_completion(&result.completion); ret = result.err; - print_hex_dump_debug("digested key@"__stringify(__LINE__)": ", + print_hex_dump_devel("digested key@"__stringify(__LINE__)": ", DUMP_PREFIX_ADDRESS, 16, 4, key, digestsize, 1); }