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 6E7332C0261; Tue, 16 Jun 2026 18:35:18 +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=1781634919; cv=none; b=LPs/Qj/DXnGLNNvR/ckMIFyk9cK8nq5p28V573poK1IxMO6TxSMniFbvP/SeRkIOJFAKSw6sxrJ8AsUE4bIx424bXirCYyfvT3FErCBFArjT8Pb8ByrRmUEohb2izxF3gPdXLr8woLInUtuZ9Sdc2WwCJr07OZbeKwvs8g7fCZw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781634919; c=relaxed/simple; bh=WE5FM4u2axEfTdEkgiPiz0MC70ZiswyogAOBfPWqQkY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=RR1Lr+kkY2kiDII5IcPzlqMHMo8iYq5rwRTLZR39tynInQmVouM+9igM6J9kgXYU41/k/SHoKvTJonbIM/IXNB8YXv994CglCIMIAMdG7w7ADjxFiYS9MAMiedVDfX8GbqZGaRbBg/o+OOpb1oUKFz5nXrf7YuZXm6Z1w9XlW0Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nzdVDp8L; 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="nzdVDp8L" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58B771F000E9; Tue, 16 Jun 2026 18:35:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1781634918; bh=NMm3E32TMv91u4AzFlLCsCooaIRiDdD7E7i77HQ+kPE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=nzdVDp8LivuQKv9IqeAfXsHZyGeLH7RHxEbhVRIwU0WyIQIP37X3rVsfTlhpyaAbJ sAgvmU94fM+VE9/zOpyieyCLUYuPS/gjEpnqaBVMEyGd86JcaxJqdS0qiJ9Dxr+AmK ZT5rBdSlVgXG05geU6NLnhaOxmra61NjXgZ95aOs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sunil Goutham , Linu Cherian , Geetha sowjanya , hariprasad , Subbaraya Sundeep , Andrew Lunn , stable , Sam Daly , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 356/411] octeontx2-af: CGX: add bounds check to cgx_speed_mbps index Date: Tue, 16 Jun 2026 20:29:54 +0530 Message-ID: <20260616145120.244843673@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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sam Daly [ Upstream commit c0bf0a4f3f1f5f57aa83e1400ba4f56f0abfd542 ] cgx_speed_mbps has 13 elements but RESP_LINKSTAT_SPEED can yield values 0-15. If it returns a value >= 13, this causes an out-of-bounds array access. Add a bounds check and default to speed 0 if the index is out of range. Fixes: 61071a871ea6 ("octeontx2-af: Forward CGX link notifications to PFs") Cc: Sunil Goutham Cc: Linu Cherian Cc: Geetha sowjanya Cc: hariprasad Cc: Subbaraya Sundeep Cc: Andrew Lunn Cc: stable Signed-off-by: Sam Daly Signed-off-by: Greg Kroah-Hartman Link: https://patch.msgid.link/2026051352-refined-demise-e88d@gregkh Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -1096,10 +1096,13 @@ static inline void link_status_user_form struct cgx *cgx, u8 lmac_id) { const char *lmac_string; + unsigned int speed; linfo->link_up = FIELD_GET(RESP_LINKSTAT_UP, lstat); linfo->full_duplex = FIELD_GET(RESP_LINKSTAT_FDUPLEX, lstat); - linfo->speed = cgx_speed_mbps[FIELD_GET(RESP_LINKSTAT_SPEED, lstat)]; + speed = FIELD_GET(RESP_LINKSTAT_SPEED, lstat); + linfo->speed = speed < ARRAY_SIZE(cgx_speed_mbps) ? + cgx_speed_mbps[speed] : 0; linfo->an = FIELD_GET(RESP_LINKSTAT_AN, lstat); linfo->fec = FIELD_GET(RESP_LINKSTAT_FEC, lstat); linfo->lmac_type_id = cgx_get_lmac_type(cgx, lmac_id);