| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-52591: reiserfs: Avoid touching renamed directory if parent does not change |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| reiserfs: Avoid touching renamed directory if parent does not change |
| |
| The VFS will not be locking moved directory if its parent does not |
| change. Change reiserfs rename code to avoid touching renamed directory |
| if its parent does not change as without locking that can corrupt the |
| filesystem. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52591 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.6.16 with commit 17e1361cb91dc1325834da95d2ab532959d2debc |
| Fixed in 6.7.4 with commit c04c162f82ac403917780eb6d1654694455d4e7c |
| Fixed in 6.8 with commit 49db9b1b86a82448dfaf3fcfefcf678dee56c8ed |
| |
| 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-2023-52591 |
| 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: |
| fs/reiserfs/namei.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/17e1361cb91dc1325834da95d2ab532959d2debc |
| https://git.kernel.org/stable/c/c04c162f82ac403917780eb6d1654694455d4e7c |
| https://git.kernel.org/stable/c/49db9b1b86a82448dfaf3fcfefcf678dee56c8ed |
