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 39F3C3F0773 for ; Fri, 8 May 2026 14:25:18 +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=1778250318; cv=none; b=hAaK/D5w80ZqkV7yaqLctLXRH1j9vUPVGMyWGDnIO2a/2ntQhvFpRan5UCeb2iOnY6VxjT18HrJDNXC802mzYdGZbMHBZaDsgFCg2CIN7Z2yzJ44bEnv+a52dYn0qKF6qJiqmJNfUh8BjXmOvpXppbrt6TUfJHDdBdCS07vokgE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250318; c=relaxed/simple; bh=r1tU6zPjDdhipTQ/LFHpdG0svMGB62ScZqp0UBXG2TY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Uh9RezYtvZ5K2OA3Fzju5IS8iIQ9GIjOWWJJmeq7ohTcp+NwJroGEdJ+eKbJ3CPAeUiLmebhI4vfDgEtq+wcTSd/JUZKmPTmGs9l8EBIIFdrxg9/4k+xRaEoKhSdqO0aKUReH36lICKCgjyClO2Jb1/PluQJlMUyxpSNbqokaAo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ettcrWSl; 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="ettcrWSl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C804BC2BCC7; Fri, 8 May 2026 14:25:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778250318; bh=r1tU6zPjDdhipTQ/LFHpdG0svMGB62ScZqp0UBXG2TY=; h=From:To:Cc:Subject:Date:Reply-To:From; b=ettcrWSlmUo6JmrpCDfbQOJN0Th4HMB2I5xcNjWl2rqL4UJ9vRPFRcNR7Dot3Avvi pDkJKsUITOuldNVJEvuFqtYByBPQfxEjnTk61BpeBGfeR7qzgxlWff5uzskeUxBpSk l8533WZf05JY3IKAUGsJMqYconR4kSOmifQiu+Fs= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43430: usb: yurex: fix race in probe Date: Fri, 8 May 2026 16:22:39 +0200 Message-ID: <2026050850-CVE-2026-43430-a1d8@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=2701; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=HVoIIqoE9hQaPz7yUn6UJdKOfzlZwVwFJXTypLLEayk=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/P9ZJrexaUq/dd7gtl8+rr3jil5lma208RRySX6+Oi Mg//vBURywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEykwYphfsa93PoCAdWwFbod 1Q6/f9baHrnWxjBXYvFNJrE5zNsv1AXuP3yDUdu/6d8pAA== 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: yurex: fix race in probe The bbu member of the descriptor must be set to the value standing for uninitialized values before the URB whose completion handler sets bbu is submitted. Otherwise there is a window during which probing can overwrite already retrieved data. The Linux kernel CVE team has assigned CVE-2026-43430 to this issue. Affected and fixed versions =========================== Fixed in 5.10.253 with commit a7934d7202a39c3160aa30521c382c7b744ae4a2 Fixed in 5.15.203 with commit a8b3b3d730acea1640bc89465f2832cf06a1e13a Fixed in 6.1.167 with commit 687d26d43a5aaf44323ce7d601cf242bb87e9559 Fixed in 6.6.130 with commit 939e3d17b843b0bae70467fef4481069d73c8520 Fixed in 6.12.78 with commit 3cec135415a89723e2d38e1c8cc5098203355965 Fixed in 6.18.19 with commit a41d3d9202e951995cfac6248c565423079c71fa Fixed in 6.19.9 with commit af83e92c329f11139d5eea2b5b7b83c26c3f67e7 Fixed in 7.0 with commit 7a875c09899ba0404844abfd8f0d54cdc481c151 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-2026-43430 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/misc/yurex.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/a7934d7202a39c3160aa30521c382c7b744ae4a2 https://git.kernel.org/stable/c/a8b3b3d730acea1640bc89465f2832cf06a1e13a https://git.kernel.org/stable/c/687d26d43a5aaf44323ce7d601cf242bb87e9559 https://git.kernel.org/stable/c/939e3d17b843b0bae70467fef4481069d73c8520 https://git.kernel.org/stable/c/3cec135415a89723e2d38e1c8cc5098203355965 https://git.kernel.org/stable/c/a41d3d9202e951995cfac6248c565423079c71fa https://git.kernel.org/stable/c/af83e92c329f11139d5eea2b5b7b83c26c3f67e7 https://git.kernel.org/stable/c/7a875c09899ba0404844abfd8f0d54cdc481c151