What’s Vulnerable › Vulnerabilities

CVE-2026-80591: f2fs: fix listxattr handling of corrupted xattr entries

• 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: 2026-08-28 · updated 2026-08-29

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix listxattr handling of corrupted xattr entries Validate the xattr entry before reading its fields in f2fs_listxattr(). Return -EFSCORRUPTED when the entry is outside the valid xattr storage area instead of returning a successful partial result.

Affected products

• Linux kernel: from 4.14.181 before 4.15; from 4.19.119 before 4.20; from 5.4.36 before 5.5; 5.5 — fixed in 4.15, 4.20, 5.5, 7.2

How to fix

Upgrade to a fixed version: Linux kernel 4.15, 4.20, 5.5, 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2770041f34b52334ea63351ffb1cc2007a9de46e
• https://git.kernel.org/stable/c/3c0dbfecd859fd02fe9008f33a83146102ccd9ba
• https://git.kernel.org/stable/c/5ef5bc304f23c3fe255d4936472378dcb74d0e94
• https://git.kernel.org/stable/c/7dd01f7d0291583e3e5420c95c7d584e114899bd
• https://git.kernel.org/stable/c/7dfac47e4189692f35230f3064acf2540e6d75fe
• https://git.kernel.org/stable/c/c8a10f174316e80d577e6549099b71a7a2111f3f
• https://git.kernel.org/stable/c/dfa4891c27bccbd83d511a065721e85621f275a1
• https://git.kernel.org/stable/c/ec9f79c8d5b28a928e65b67cd138c841571cf502

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