CVE-2024-42297Public exploit

Kernel panic via dirty read-only F2FS inode

Published Aug 17, 2024 · Updated Aug 5, 2026

Denial of service in Linux kernel F2FS allows local users to trigger a kernel panic by accessing and unmounting a read-only filesystem. The lookup path repairs i_current_depth and f2fs_dirty_inode sets FI_DIRTY_INODE even though the superblock is read-only, while shutdown skips synchronization. Low-privileged local access and a read-only F2FS mount are required; inode eviction during unmount reaches f2fs_bug_on and crashes the host.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Linux kernel F2FS allows local users to trigger a kernel panic by accessing and unmounting a read-only filesystem. The lookup path repairs i_current_depth and f2fs_dirty_inode sets FI_DIRTY_INODE even though the superblock is read-only, while shutdown skips synchronization. Low-privileged local access and a read-only F2FS mount are required; inode eviction during unmount reaches f2fs_bug_on and crashes the host.

The record

CVE
CVE-2024-42297
Published
Aug 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 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=3.8
  2. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <192b8fb8d1c8ca3c87366ebbef599fa80bb626b8
  3. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <2434344559f6743efb3ac15d11af9a0db9543bd3
  4. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <2d2916516577f2239b3377d9e8d12da5e6ccdfcf
  5. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <54162974aea37a8cae00742470a78c7f6bd6f915
  6. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <54bc4e88447e385c4d4ffa85d93e0dce628fcfa6
  7. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <9ce8135accf103f7333af472709125878704fdd4
  8. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <e62ff092a42f4a1bae3b310cf46673b4f3aac3b5
  9. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <ec56571b4b146a1cfbedab49d5fcaf19fe8bf4f1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.8; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <192b8fb8d1c8ca3c87366ebbef599fa80bb626b8; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <2434344559f6743efb3ac15d11af9a0db9543bd3; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <2d2916516577f2239b3377d9e8d12da5e6ccdfcf; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <54162974aea37a8cae00742470a78c7f6bd6f915; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <54bc4e88447e385c4d4ffa85d93e0dce628fcfa6; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <9ce8135accf103f7333af472709125878704fdd4; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <e62ff092a42f4a1bae3b310cf46673b4f3aac3b5; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <ec56571b4b146a1cfbedab49d5fcaf19fe8bf4f1

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

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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