What’s Vulnerable › Vulnerabilities

CVE-2026-89832: f2fs: fix to clear dirty flag on folio in error path

• 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: 2026-09-16 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to clear dirty flag on folio in error path If node block is corrupted due to chksum mismatch or inconsistent footer info, it needs to drop clear flag of node folio, in order to persist inconsistent node data to storage.

Affected products

• Linux: from 4.19.51 before 4.20; from 5.1.10 before 5.2 — fixed in 4.20, 5.2

How to fix

Upgrade to a fixed version: Linux 4.20, 5.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/21b7f66716b4fd0dffac4fcd06602b888f3c4531
• https://git.kernel.org/stable/c/34732e3a8713f3b7acd1a0ea37e3a6bee4c78550
• https://git.kernel.org/stable/c/3923ec2b98c96dda4a8bfab81d22553dbf0dd6c2
• https://git.kernel.org/stable/c/5b86eab84ac8e9289b5afc52ef88ab18ba5bacab
• https://git.kernel.org/stable/c/9e0d9a317ce2cae3768626599d857bb3f0fd96fc
• https://git.kernel.org/stable/c/ab35ae07f2b5b4e118ea47b88577fc7d0e797b17

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