What’s Vulnerable › Vulnerabilities

CVE-2023-53838: f2fs: synchronize atomic write aborts

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-09 · updated 2026-08-04

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: synchronize atomic write aborts To fix a race condition between atomic write aborts, I use the inode lock and make COW inode to be re-usable thoroughout the whole atomic file inode lifetime.

Affected products

• Linux kernel: from 5.18.18 before 5.19; 5.19 — fixed in 5.19, 6.3

How to fix

Upgrade to a fixed version: Linux kernel 5.19, 6.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/102b82708c1523b36d421cb8687746906069bc17
• https://git.kernel.org/stable/c/a46bebd502fe1a3bd1d22f64cedd93e7e7702693
• https://git.kernel.org/stable/c/b7724360714642099cec907f54f42e55f5325453

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