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Message-ID: <2024111924-CVE-2024-50267-2d0d@gregkh> Date: Tue, 19 Nov 2024 02:32:22 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-50267: USB: serial: io_edgeport: fix use after free in debug printk Description =========== In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_edgeport: fix use after free in debug printk The "dev_dbg(&urb->dev->dev, ..." which happens after usb_free_urb(urb) is a use after free of the "urb" pointer. Store the "dev" pointer at the start of the function to avoid this issue. The Linux kernel CVE team has assigned CVE-2024-50267 to this issue. Affected and fixed versions =========================== Issue introduced in 3.7 with commit 984f68683298 and fixed in 4.19.324 with commit e6ceb04eeb61 Issue introduced in 3.7 with commit 984f68683298 and fixed in 5.4.286 with commit 39709ce93f5c Issue introduced in 3.7 with commit 984f68683298 and fixed in 5.10.230 with commit e567fc8f7a44 Issue introduced in 3.7 with commit 984f68683298 and fixed in 5.15.172 with commit 44fff2c16c5a Issue introduced in 3.7 with commit 984f68683298 and fixed in 6.1.117 with commit 275258c30bbd Issue introduced in 3.7 with commit 984f68683298 and fixed in 6.6.61 with commit 13d6ff3ca760 Issue introduced in 3.7 with commit 984f68683298 and fixed in 6.11.8 with commit 314bdf446053 Issue introduced in 3.7 with commit 984f68683298 and fixed in 6.12 with commit 37bb56283792 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-2024-50267 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/io_edgeport.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/e6ceb04eeb6115d872d4c4078d12f1170ed755ce https://git.kernel.org/stable/c/39709ce93f5c3f9eb535efe2afea088805d1128f https://git.kernel.org/stable/c/e567fc8f7a4460e486e52c9261b1e8b9f5dc42aa https://git.kernel.org/stable/c/44fff2c16c5aafbdb70c7183dae0a415ae74705e https://git.kernel.org/stable/c/275258c30bbda29467216e96fb655b16bcc9992b https://git.kernel.org/stable/c/13d6ff3ca76056d06a9d88300be2a293442ff595 https://git.kernel.org/stable/c/314bdf446053e123f37543aa535197ee75f8aa97 https://git.kernel.org/stable/c/37bb5628379295c1254c113a407cab03a0f4d0b4
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