CVE-2024-38583
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.
How to fix
- linux linux_kernel4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94, 6.6.33, 6.8.12, 6.9.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.35 ≤ v < 4.19.316, 4.20 ≤ v < 5.4.278, 5.5 ≤ v < 5.10.219, 5.11 ≤ v < 5.15.161, 5.16 ≤ v < 6.1.94, 6.2 ≤ v < 6.6.33, 6.7 ≤ v < 6.8.12, 6.9 ≤ v < 6.9.3 | 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94, 6.6.33, 6.8.12, 6.9.3 |
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