CVE-2024-26869

Data corruption via stale meta-inode page reuse

Published Apr 17, 2024 · Updated Aug 5, 2026

A race condition in Linux kernel F2FS beginning with 4.19 allows local users to corrupt data through concurrent in-place writes and garbage collection. f2fs_inplace_write_data calls invalidate_mapping_pages, which can skip a locked, dirty, or writeback meta-inode page; garbage collection then reads stale data from that page and writes it to a new block. Exploitation requires local low-privileged access and the concurrent F2FS operations, with the documented consequence limited to filesystem data corruption.

CVSS severity4.7
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in Linux kernel F2FS beginning with 4.19 allows local users to corrupt data through concurrent in-place writes and garbage collection. f2fs_inplace_write_data calls invalidate_mapping_pages, which can skip a locked, dirty, or writeback meta-inode page; garbage collection then reads stale data from that page and writes it to a new block. Exploitation requires local low-privileged access and the concurrent F2FS operations, with the documented consequence limited to filesystem data corruption.

The record

CVE
CVE-2024-26869
Published
Apr 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1485
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.19
  2. Affected versionversion=6aa58d8ad20a3323f42274c25820a6f54192422d <04226d8e3c4028dc451e9d8777356ec0f7919253
  3. Affected versionversion=6aa58d8ad20a3323f42274c25820a6f54192422d <77bfdb89cc222fc7bfe198eda77bdc427d5ac189
  4. Affected versionversion=6aa58d8ad20a3323f42274c25820a6f54192422d <9f0c4a46be1fe9b97dbe66d49204c1371e3ece65
  5. Affected versionversion=6aa58d8ad20a3323f42274c25820a6f54192422d <c92f2927df860a60ba815d3ee610a944b92a8694

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.19; version=6aa58d8ad20a3323f42274c25820a6f54192422d <04226d8e3c4028dc451e9d8777356ec0f7919253; version=6aa58d8ad20a3323f42274c25820a6f54192422d <77bfdb89cc222fc7bfe198eda77bdc427d5ac189; version=6aa58d8ad20a3323f42274c25820a6f54192422d <9f0c4a46be1fe9b97dbe66d49204c1371e3ece65; version=6aa58d8ad20a3323f42274c25820a6f54192422d <c92f2927df860a60ba815d3ee610a944b92a8694

Published CVSS scores

4.7NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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