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 DF3893C584F for ; Sun, 18 Oct 2026 15:52:09 +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=1792338732; cv=none; b=rZEl2x5+TrweO0Aj1vc7U1oflv5YNbbtPvR4Bmvh481/Wo/Tjv28Bk+z7KXeRqjc2Oxer2/buIZrr1pYYLsEfI8T68QmeA4xztRBZh2Xc3vb2SaDXw8sXGLOtptcS0XjI0RI6F42u8Hl5d6mV1/ZIhXjnYk8X6sgBAnGpv6RjLI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792338732; c=relaxed/simple; bh=BJSFRqTOBP7RXavmAEsGDvHI93ZhnegHHkNTqaR1U/s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=kb6xmT6XZ4Y20ja3guiuGVQDp0ay/tuuKZggUWwS+TqpKg3cDFGswcWezadEI0xwGo30eDflgcd4D5A3C2rnsh4dPTlcSfzdtwDdQm2RKhhJ57ScGmOGV4919xJ3iTfAqjmZF3ywUcS7q7/E+6p6IV1TAsVBTG2rHeQnJGx5ZNc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=tuYNcAzr; 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="tuYNcAzr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FA0B1F000C4; Sun, 18 Oct 2026 15:52:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1792338729; bh=emaYD7moyozekDVVs/XUhlFalFKr+0avNKrfRtqZAFI=; h=From:To:Cc:Subject:Date:Reply-To; b=tuYNcAzr/PequMu2vU613eXn2vq4K6Hvt5AxAAVALixURDsF6/x9+9+n9WOcPfY8r xlcX2lifBtyEWg54vwu9FGLGWUj9iSni+0eeTY3rZPXv/GkAmdmxNEmBbxG5wXTJOh mO/Ky7efnHUSU5CwFJQPWSmY8RKbZQeoQI7lCG9g= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-98697: USB: serial: fix dynamic id driver deregistration race Date: Sun, 18 Oct 2026 17:44:32 +0200 Message-ID: <2026101804-CVE-2026-98697-3afc@gregkh> X-Mailer: git-send-email 2.56.0 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=2397; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=eqEaipVmH4e1zOk+6xqjDIoqH2jytDyaOvY2cLYvN/o=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlXXrpEz995ofml6B0exfcBrOG1Fi0Ln6eeOzN9/0WmF cfqKyfGd8SyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBEtNgZFkwsZP4ikLZmWUSX lJLo68kf983Y58IwV/zCM9Not5hrUU3OK86c9J3ayfNhFwA= 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: serial: fix dynamic id driver deregistration race Only free the dynamic ids after having deregistered the driver and removed the "new_id" attribute to avoid leaking any id added by a racing write to the attribute. The Linux kernel CVE team has assigned CVE-2026-98697 to this issue. Affected and fixed versions =========================== Issue introduced in 2.6.21 with commit 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and fixed in 6.12.113 with commit ebd8fcaaacb66c15ae7e19d14619abe3762e0701 Issue introduced in 2.6.21 with commit 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and fixed in 6.18.56 with commit 4d6da6867b4ac6468d634a0dd3c35dfc0dc8af81 Issue introduced in 2.6.21 with commit 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and fixed in 7.2.10 with commit 380f57cd58e26e0f3687451196ec446c473c52d9 Issue introduced in 2.6.21 with commit 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and fixed in 7.3-rc6 with commit 63594e8ffe097bc0b7639936f33799a7653dded2 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-2026-98697 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/serial/bus.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/ebd8fcaaacb66c15ae7e19d14619abe3762e0701 https://git.kernel.org/stable/c/4d6da6867b4ac6468d634a0dd3c35dfc0dc8af81 https://git.kernel.org/stable/c/380f57cd58e26e0f3687451196ec446c473c52d9 https://git.kernel.org/stable/c/63594e8ffe097bc0b7639936f33799a7653dded2