| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-49925: fbdev: efifb: Register sysfs groups through driver core |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| fbdev: efifb: Register sysfs groups through driver core |
| |
| The driver core can register and cleanup sysfs groups already. |
| Make use of that functionality to simplify the error handling and |
| cleanup. |
| |
| Also avoid a UAF race during unregistering where the sysctl attributes |
| were usable after the info struct was freed. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49925 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.10 with commit 753375a881caa01112b7cec2c796749154e0bb23 and fixed in 6.1.120 with commit 2a9c40c72097b583b23aeb2a26d429ccfc81fbc1 |
| Issue introduced in 4.10 with commit 753375a881caa01112b7cec2c796749154e0bb23 and fixed in 6.6.55 with commit 36bfefb6baaa8e46de44f4fd919ce4347337620f |
| Issue introduced in 4.10 with commit 753375a881caa01112b7cec2c796749154e0bb23 and fixed in 6.10.14 with commit 872cd2d029d2c970a8a1eea88b48dab2b3f2e93a |
| Issue introduced in 4.10 with commit 753375a881caa01112b7cec2c796749154e0bb23 and fixed in 6.11.3 with commit 4684d69b9670a83992189f6271dc0fcdec4ed0d7 |
| Issue introduced in 4.10 with commit 753375a881caa01112b7cec2c796749154e0bb23 and fixed in 6.12 with commit 95cdd538e0e5677efbdf8aade04ec098ab98f457 |
| |
| 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-2024-49925 |
| 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/video/fbdev/efifb.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/2a9c40c72097b583b23aeb2a26d429ccfc81fbc1 |
| https://git.kernel.org/stable/c/36bfefb6baaa8e46de44f4fd919ce4347337620f |
| https://git.kernel.org/stable/c/872cd2d029d2c970a8a1eea88b48dab2b3f2e93a |
| https://git.kernel.org/stable/c/4684d69b9670a83992189f6271dc0fcdec4ed0d7 |
| https://git.kernel.org/stable/c/95cdd538e0e5677efbdf8aade04ec098ab98f457 |
