Updated: 2025-11-19 05:16:33.517683
Description:
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free of timer for log writer thread Patch series "nilfs2: fix log writer related issues". This bug fix series covers three nilfs2 log writer-related issues, including a timer use-after-free issue and potential deadlock issue on unmount, and a potential freeze issue in event synchronization found during their analysis. Details are described in each commit log. This patch (of 3): A use-after-free issue has been reported regarding the timer sc_timer on the nilfs_sc_info structure. The problem is that even though it is used to wake up a sleeping log writer thread, sc_timer is not shut down until the nilfs_sc_info structure is about to be freed, and is used regardless of the thread's lifetime. Fix this issue by limiting the use of sc_timer only while the log writer thread is alive.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.8 | HIGH | Not Vulnerable | 2024-08-26 14:29:21 | ||
| CentOS 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Not Vulnerable | 2024-08-21 12:19:17 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2024-08-13 05:27:16 | ||
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2024-08-13 05:27:16 | ||
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2024-09-05 03:39:24 | ||
| CloudLinux 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Ignored | 2025-01-10 22:43:48 | CL7 support is limited | |
| Oracle Linux 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Not Vulnerable | 2025-05-12 06:40:51 | ||
| Oracle Linux 7 ELS | kernel-uek | 5.4.17 | 7.8 | HIGH | Needs Triage | 2025-11-19 08:47:40 | ||
| RHEL 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Not Vulnerable | 2025-05-28 00:25:54 | ||
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.8 | HIGH | Released | CLSA-2024:1723622106 | 2024-08-14 08:18:51 |