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 912403F0A8A for ; Fri, 8 May 2026 14:26:32 +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=1778250392; cv=none; b=ZO3wBofW9sA0ia00U9oD1+KhaPCyGElb4oTz0n6ZLCqeuTQ/hjI2JLMTJofSeYkTR0Z/gWetANsWkVnJu19RCdmtPcZ8laABSPze0ffqLAmGUMo5K4Mb0RLce/d/bJSYgjaWMJ4B/FTFyYKlvzVGsPK8x5hTqL4iWCq18zJAlSI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250392; c=relaxed/simple; bh=koNwfsxzX1iBXaAJylTa7fjdk14ZzbbMkDsjBNhbyas=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=rf7ot9hMmgbYApiPLfzuWQzjHZsPkqbqZ55cYqvkq1ZWYSLkvbEFrNohSG67Hxv52J3iZAv3RVIWm/GcPZzO3RRWOGYPH+1kVllNurBsQB00pNQLolLkBnbf40MoBwTfZLyETWR8BsNPO4VkUw2eDB3vB7U97SsMezjmHlCJQfE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yArShH8z; 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="yArShH8z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A5EA0C2BCB0; Fri, 8 May 2026 14:26:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778250392; bh=koNwfsxzX1iBXaAJylTa7fjdk14ZzbbMkDsjBNhbyas=; h=From:To:Cc:Subject:Date:Reply-To:From; b=yArShH8zrFmcV6KIaYGUdRRnF/pLYICH29Xb68bcWmroy+KffMqAn6AtANNsjSfHP uwoKnqRiJDaW+jmt/MNZW29M9AhIbr46G7+7luR1QiS5f4H6Ei/XTWcFlovTuo7MFd 1h/ZTT0jRgGnde1DCSn4BX5fla6RDym4fWPdma+w= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43425: usb: image: mdc800: kill download URB on timeout Date: Fri, 8 May 2026 16:22:34 +0200 Message-ID: <2026050848-CVE-2026-43425-866e@gregkh> X-Mailer: git-send-email 2.54.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3148; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=9QZc+8Gdu3QYm1WTwIPkeUjPFB8Ht3ttTY76GZV8F7E=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/P9acu5ZYbOCm8iUq+H5Ozd49HasYxGZuzN605Z3RI fuw9dmxHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCRnBiG+d550XZ/VbV8DNnP elmsDlg1w1H8KsMczhXL+Pr7VFbf3PLtqmB8xReb3U9EAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: usb: image: mdc800: kill download URB on timeout mdc800_device_read() submits download_urb and waits for completion. If the timeout fires and the device has not responded, the function returns without killing the URB, leaving it active. A subsequent read() resubmits the same URB while it is still in-flight, triggering the WARN in usb_submit_urb(): "URB submitted while active" Check the return value of wait_event_timeout() and kill the URB if it indicates timeout, ensuring the URB is complete before its status is inspected or the URB is resubmitted. Similar to - commit 372c93131998 ("USB: yurex: fix control-URB timeout handling") - commit b98d5000c505 ("media: rc: iguanair: handle timeouts") The Linux kernel CVE team has assigned CVE-2026-43425 to this issue. Affected and fixed versions =========================== Fixed in 5.10.253 with commit 9fa5a49760979ba016506fe292a431c8b83f043e Fixed in 5.15.203 with commit 15536f6c15f48037a1672cbdea53266d67861ff6 Fixed in 6.1.167 with commit 9bf877cc67309b2a063b0087c3ad8585fb11cec3 Fixed in 6.6.130 with commit 155f471e38aa516f6c58c2ae03ca3dc222fa2fdb Fixed in 6.12.78 with commit d4a400a6a4c4d49f77a04a3f401df5ae1a10657c Fixed in 6.18.19 with commit b7fed917f84e484e06c5e9926746d0b524e3a93e Fixed in 6.19.9 with commit cc7398447810c9450c90d092efe9997569f8d96f Fixed in 7.0 with commit 1be3b77de4eb89af8ae2fd6610546be778e25589 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-43425 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/usb/image/mdc800.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/9fa5a49760979ba016506fe292a431c8b83f043e https://git.kernel.org/stable/c/15536f6c15f48037a1672cbdea53266d67861ff6 https://git.kernel.org/stable/c/9bf877cc67309b2a063b0087c3ad8585fb11cec3 https://git.kernel.org/stable/c/155f471e38aa516f6c58c2ae03ca3dc222fa2fdb https://git.kernel.org/stable/c/d4a400a6a4c4d49f77a04a3f401df5ae1a10657c https://git.kernel.org/stable/c/b7fed917f84e484e06c5e9926746d0b524e3a93e https://git.kernel.org/stable/c/cc7398447810c9450c90d092efe9997569f8d96f https://git.kernel.org/stable/c/1be3b77de4eb89af8ae2fd6610546be778e25589