From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 12E5874BE5; Mon, 8 Apr 2024 13:29:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712582972; cv=none; b=kfJfG3AYl8LaSuxSCJm9hnaUV6awv4bn1lomPFAPCejBEcL8vQjFCpyilEtqk0KFCfmWsq6P1YrOQ0phEWRdgyy+OtKYpkhRpbIQTVopLB9VMT+rTBVE+n+CUHsxduPlJTysPN65h8s6Xqdclx8no46sOvhKpZl5AHR1nRRvL0U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712582972; c=relaxed/simple; bh=aX1d1FWvdpOT1LSvrRhbqRqfDJjF5trs+y/J+HeuRbs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=olNYdsL3LiLAnHOw9T0pLmm0g9jV0wJEd2BQUqi2dSRacfiCTtu60Zcyxr+rZgbgbOSek+IhDNemGmHkHMH5BLSEOXZhsednkWT7+vTBGNgla+pZQVQPReXFBw/O59rmA4OWc5ri+5OfD+hEbO1V/0rKV88z2Vtkue3olLOQJ9c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nlBc0Tjc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="nlBc0Tjc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4934EC433F1; Mon, 8 Apr 2024 13:29:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712582970; bh=aX1d1FWvdpOT1LSvrRhbqRqfDJjF5trs+y/J+HeuRbs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nlBc0TjcvkE1s7PAMBZ/oJ+gsod7UKOO9PKr83rmFGH1Iw1RJvLiNYSLVLliJHUYH 4gmLqQ2iJ7zoK8gkQCTO+Y7Ye899h/qWO7QM1jzluApxpsqKTWtvz9cS8tYNIQ8oMB Y2z6l9zJDkA0deR74c4ZZJcXs0oVb0A3Xa1DPvtE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Aleksandr Mishin , "David S. Miller" Subject: [PATCH 6.8 126/273] octeontx2-af: Add array index check Date: Mon, 8 Apr 2024 14:56:41 +0200 Message-ID: <20240408125313.207420207@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125309.280181634@linuxfoundation.org> References: <20240408125309.280181634@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Aleksandr Mishin commit ef15ddeeb6bee87c044bf7754fac524545bf71e8 upstream. In rvu_map_cgx_lmac_pf() the 'iter', which is used as an array index, can reach value (up to 14) that exceed the size (MAX_LMAC_COUNT = 8) of the array. Fix this bug by adding 'iter' value check. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 91c6945ea1f9 ("octeontx2-af: cn10k: Add RPM MAC support") Signed-off-by: Aleksandr Mishin Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c @@ -160,6 +160,8 @@ static int rvu_map_cgx_lmac_pf(struct rv continue; lmac_bmap = cgx_get_lmac_bmap(rvu_cgx_pdata(cgx, rvu)); for_each_set_bit(iter, &lmac_bmap, rvu->hw->lmac_per_cgx) { + if (iter >= MAX_LMAC_COUNT) + continue; lmac = cgx_get_lmacid(rvu_cgx_pdata(cgx, rvu), iter); rvu->pf2cgxlmac_map[pf] = cgxlmac_id_to_bmap(cgx, lmac);