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 56A2D47ACC0; Sat, 12 Sep 2026 11:52:46 +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=1789213970; cv=none; b=TcfPL0P51Ibmy+LOKH4jKWWK911bXXWYUturIf82h8zNn1UmotcjAWXSJrSkYdTS4m1AbV27K3fhh3oLKWbT9Keq051iCrRf9J/ve5jGp5HDZnOOVF332NkQ8tt1q76OeRrz4jLg3ClVfzNi0MK5bwjyiGxDp8Iledo57Ecwtps= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789213970; c=relaxed/simple; bh=zcSSDGqgVoEC6DDoaTng0udhW0Bz1Ge7nuLRBOOqw80=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lVWayX1/4b2keEE3lHqZP5W8qQ2AhDjmUJ5p+eq5mJyrt5AczVzlFmV1iMqBxwJAasGgcrRff1L/u/zi0cYy7yFbZ969e9XunVV9be5EsLfIut6OStJkU1rCTpmFidVlUg6skczlo7DwpMhM5bjM85MUXIsFZDRmLxLluc33lzc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iQIB7y/w; 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="iQIB7y/w" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B60431F000FF; Sat, 12 Sep 2026 11:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789213964; bh=1nYnyg2jyad6bTNoXOd4Bkk06t3JnU7Et/hiwPcbGW8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=iQIB7y/wxbY50BZ4kPBf/CdpHo+lPsffLNgrucuK3xLaCOQdhmsBA4+huN8edCWMC GoZq2JeVzLophjgpFnjD3ui08jfDsBgHjZVvo7t4EIXRSS3bnKmy/Z9ukZg+QAXnI1 TJsp49KfHmEkKg28KfgGCXvjs2opqAEfDjFzQA2E= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nilesh Javali , Hannes Reinecke , "Martin K. Petersen (Oracle)" Subject: [PATCH 6.12 0227/1376] scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions() Date: Sat, 12 Sep 2026 08:44:13 +0200 Message-ID: <20260912065612.607011005@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.535295758@linuxfoundation.org> References: <20260912065607.535295758@linuxfoundation.org> User-Agent: quilt/0.69 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 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nilesh Javali commit de62cf265dbe309f34f144a6cdbca9240317727e upstream. qla2x00_update_fru_versions() copies the user-supplied BSG request into a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates list->count times over the qla_image_version array embedded in that buffer, advancing the image pointer each iteration. count is taken directly from user input with no upper bound, while only (DMA_POOL_SIZE - sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries actually fit. A larger count walks the image pointer off the end of the stack buffer, reading adjacent kernel stack memory and sending it to the device via qla2x00_write_sfp(). Reject requests whose declared count does not fit in the buffer. Fixes: 697a4bc69159 ("[SCSI] qla2xxx: Provide method for updating I2C attached VPD.") Cc: stable@vger.kernel.org Signed-off-by: Nilesh Javali Reviewed-by: Hannes Reinecke Link: https://patch.msgid.link/20260723050413.3897522-56-njavali@marvell.com Signed-off-by: Martin K. Petersen (Oracle) Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_bsg.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -1578,6 +1578,13 @@ qla2x00_update_fru_versions(struct bsg_j image = list->version; count = list->count; + + if (struct_size(list, version, count) > sizeof(bsg)) { + bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = + EXT_STATUS_INVALID_PARAM; + goto dealloc; + } + while (count--) { memcpy(sfp, &image->field_info, sizeof(image->field_info)); rval = qla2x00_write_sfp(vha, sfp_dma, sfp,