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 44F73439322; Tue, 21 Jul 2026 22:03:10 +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=1784671391; cv=none; b=oHqrzIv0HQyekuNPJPDeAC+J5WP8QW1mO9j3r181aMz3MYALDV8uECMK4wdTuXMH3bVkVsN1ZkdF5wS351ZRF/XpIHCzHxcjGZmRD3cBJBZ437djwPjhapXGoxrSxEt6QNFXu4SjUlzOnflOpN+0K6+VdMAwspJB5eotUdlGO7I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671391; c=relaxed/simple; bh=XtRxtY5ItoC1plcgmEvV2OeNcj9LV72Xa+hyaOAzb5k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Czga17m5W6iGk1wmRlDrc6ocDDXFc35KjQJnbLUe8HO1MGQnVj/Ny3tW7MCDmuAJmKX09RTo1GxBVZVGxom9Fm0mV7UV78Kfj+ZjCeEKlZkP/QFGFiLNxA77OihHVh5bRrMRV53gd9v/N4ulCys48EXf1HvvqZrJD7K5bnJee58= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=L+A8dUGg; 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="L+A8dUGg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A63D51F000E9; Tue, 21 Jul 2026 22:03:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784671390; bh=JJUsu5y5MgcG26fVFh/44LloApEFrtiYckMC4uWsX4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=L+A8dUGgG1inTSnqlVYnVXb8/AudJ91xAh8HLr3vM03IojL9AsnTIW3Msm3HYgyt1 8TAZHiD5qdUV4WL4Pjjg9oq1CY6DmTP3iWXoMx/Ojirf2odZXu0dm2HZ13WUGyV0E2 xUsxEvdi0/abPgKx463q8gEQDQhtkgcYy8ezgarg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thorsten Blum , Lukas Wunner , Vitaly Chikunov , Herbert Xu , Sasha Levin Subject: [PATCH 5.15 229/843] crypto: ecrdsa - fix unknown OID check in ecrdsa_param_curve Date: Tue, 21 Jul 2026 17:17:44 +0200 Message-ID: <20260721152411.169123351@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@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 2d7b2cfc59998baf5e8622a24dc28f69a5212e06 ] The ->curve_oid check in ecrdsa_param_curve() rejects the valid enum value 0 (OID_id_dsa_with_sha1), but look_up_OID() returns OID__NR on lookup failure. Compare ->curve_oid with OID__NR instead to ensure that only unknown OIDs return -EINVAL. Fixes: 0d7a78643f69 ("crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm") Signed-off-by: Thorsten Blum Reviewed-by: Lukas Wunner Reviewed-by: Vitaly Chikunov Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- crypto/ecrdsa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/ecrdsa.c b/crypto/ecrdsa.c index 0a970261b107d9..bfb6dbfb4598f0 100644 --- a/crypto/ecrdsa.c +++ b/crypto/ecrdsa.c @@ -153,7 +153,7 @@ int ecrdsa_param_curve(void *context, size_t hdrlen, unsigned char tag, struct ecrdsa_ctx *ctx = context; ctx->curve_oid = look_up_OID(value, vlen); - if (!ctx->curve_oid) + if (ctx->curve_oid == OID__NR) return -EINVAL; ctx->curve = get_curve_by_oid(ctx->curve_oid); return 0; -- 2.53.0