CVE-2026-89832 Linux Kernel - Data Tampering

Linux kernel contains a data tampering vulnerability in f2fs caused by failure to clear dirty flag on folio in error path, letting attackers persist corrupted node block data, exploit requires kernel-level access.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.18% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Data Tampering
Impact
Data Tampering
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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