What’s Vulnerable › Vulnerabilities
CVE-2023-52436: f2fs: explicitly null-terminate the xattr list
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-02-20 · updated 2026-08-15
Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: explicitly null-terminate the xattr list When setting an xattr, explicitly null-terminate the xattr list. This eliminates the fragile assumption that the unused xattr space is always zeroed.
Affected products
- Linux kernel: before 4.19.306; from 4.20.0 before 5.4.268; from 5.5.0 before 5.10.209; from 5.11.0 before 5.15.148; from 5.16.0 before 6.1.74; from 6.2.0 before 6.6.13 — fixed in 4.19.306, 5.10.209, 5.15.148, 5.4.268, 6.1.74, 6.6.13
How to fix
Upgrade to a fixed version: Linux kernel 4.19.306, 5.10.209, 5.15.148, 5.4.268. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/12cf91e23b126718a96b914f949f2cdfeadc7b2a
- https://git.kernel.org/stable/c/16ae3132ff7746894894927c1892493693b89135
- https://git.kernel.org/stable/c/2525d1ba225b5c167162fa344013c408e8b4de36
- https://git.kernel.org/stable/c/32a6cfc67675ee96fe107aeed5af9776fec63f11
- https://git.kernel.org/stable/c/3e47740091b05ac8d7836a33afd8646b6863ca52
- https://git.kernel.org/stable/c/5de9e9dd1828db9b8b962f7ca42548bd596deb8a
- https://git.kernel.org/stable/c/e26b6d39270f5eab0087453d9b544189a38c8564
- https://git.kernel.org/stable/c/f6c30bfe5a49bc38cae985083a11016800708fea
- https://git.kernel.org/stable/c/12cf91e23b126718a96b914f949f2cdfeadc7b2a
- https://git.kernel.org/stable/c/16ae3132ff7746894894927c1892493693b89135
- https://git.kernel.org/stable/c/2525d1ba225b5c167162fa344013c408e8b4de36
- https://git.kernel.org/stable/c/32a6cfc67675ee96fe107aeed5af9776fec63f11
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