CVE-2024-42296

Kernel panic via mishandled read-only conversion error

Published Aug 17, 2024 · Updated Aug 5, 2026

Error handling in Linux kernel f2fs allows local users to trigger a kernel panic during inline-inode writeback on affected releases. f2fs_convert_inline_inode returns success instead of EROFS when the underlying device is read-only, allowing writeback to continue with an invalid conversion state. Exploitation requires local access to a mounted f2fs filesystem and a read-only device condition; the bounded consequence is a host crash.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Error handling in Linux kernel f2fs allows local users to trigger a kernel panic during inline-inode writeback on affected releases. f2fs_convert_inline_inode returns success instead of EROFS when the underlying device is read-only, allowing writeback to continue with an invalid conversion state. Exploitation requires local access to a mounted f2fs filesystem and a read-only device condition; the bounded consequence is a host crash.

The record

CVE
CVE-2024-42296
Published
Aug 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-393, 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 <077f0e24b27c4b44841593c7edbd1993be9eecb5
  3. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <1e7725814361c8c008d131db195cef8274ff26b8
  4. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <47a8ddcdcaccd9b891db4574795e46a33a121ac2
  5. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <70f5ef5f33c333cfb286116fa3af74ac9bc84f1b
  6. Affected versionversion=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <a8eb3de28e7a365690c61161e7a07a4fc7c60bbf

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.8; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <077f0e24b27c4b44841593c7edbd1993be9eecb5; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <1e7725814361c8c008d131db195cef8274ff26b8; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <47a8ddcdcaccd9b891db4574795e46a33a121ac2; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <70f5ef5f33c333cfb286116fa3af74ac9bc84f1b; version=98e4da8ca301e062d79ae168c67e56f3c3de3ce4 <a8eb3de28e7a365690c61161e7a07a4fc7c60bbf

Published CVSS scores

7.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5UbuntuCVSS:3.1/AV:L/AC:L/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-393Return of Wrong Status Code
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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