CVE-2024-38583: nilfs2: fix use-after-free of timer for log writer thread
First published: Wed Jun 19 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.35<4.19.316 | |
| Linux Linux kernel | >=4.20<5.4.278 | |
| Linux Linux kernel | >=5.5<5.10.219 | |
| Linux Linux kernel | >=5.11<5.15.161 | |
| Linux Linux kernel | >=5.16<6.1.94 | |
| Linux Linux kernel | >=6.2<6.6.33 | |
| Linux Linux kernel | >=6.7<6.8.12 | |
| Linux Linux kernel | >=6.9<6.9.3 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.3-1 |
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Reference Links
- https://git.kernel.org/stable/c/2f12b2c03c5dae1a0de0a9e5853177e3d6eee3c6
- https://git.kernel.org/stable/c/67fa90d4a2ccd9ebb0e1e168c7d0b5d0cf3c7148
- https://git.kernel.org/stable/c/68e738be5c518fc3c4e9146b66f67c8fee0135fb
- https://git.kernel.org/stable/c/822ae5a8eac30478578a75f7e064f0584931bf2d
- https://git.kernel.org/stable/c/82933c84f188dcfe89eb26b0b48ab5d1ca99d164
- https://git.kernel.org/stable/c/86a30d6302deddb9fb97ba6fc4b04d0e870b582a
- https://git.kernel.org/stable/c/e65ccf3a4de4f0c763d94789615b83e11f204438
- https://git.kernel.org/stable/c/f5d4e04634c9cf68bdf23de08ada0bb92e8befe7
- https://git.kernel.org/stable/c/f9186bba4ea282b07293c1c892441df3a5441cb0
- https://launchpad.net/bugs/cve/CVE-2024-38583
- https://git.kernel.org/linus/f5d4e04634c9cf68bdf23de08ada0bb92e8befe7
- https://security-tracker.debian.org/tracker/CVE-2024-38583
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38583
- https://nvd.nist.gov/vuln/detail/CVE-2024-38583
- https://ubuntu.com/security/CVE-2024-38583
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