CVE-2024-38583

HIGH
Published Jun 19, 2024 Modified Nov 4, 2025 CWE-416

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.

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CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

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://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

Frequently Asked Questions

What is CVE-2024-38583? +
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. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2024-38583? +
CVE-2024-38583 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-38583? +
CVE-2024-38583 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-38583? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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