CVE-2024-50116

Local denial of service via stale buffer flag

Published Nov 5, 2024 · Updated May 11, 2026

Denial of service in the Linux nilfs2 driver allows local users to trigger a kernel BUG via a corrupted filesystem image. The nilfs2 page-clearing path discards a page, folio, or buffer head without clearing its buffer-delay flag, leaving submit_bh_wbc() to encounter an invalid delayed-buffer state. When the kernel reads the corrupted image and degrades the filesystem to read-only, the stale flag can trip the BUG_ON check and interrupt system availability; normal log writing does not create the inconsistency.

CVSS severity5.5
Medium
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

Denial of service in the Linux nilfs2 driver allows local users to trigger a kernel BUG via a corrupted filesystem image. The nilfs2 page-clearing path discards a page, folio, or buffer head without clearing its buffer-delay flag, leaving submit_bh_wbc() to encounter an invalid delayed-buffer state. When the kernel reads the corrupted image and degrades the filesystem to read-only, the stale flag can trip the BUG_ON check and interrupt system availability; normal log writing does not create the inconsistency.

The record

CVE
CVE-2024-50116
Published
Nov 5, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 5, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=3.10
  2. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <033bc52f35868c2493a2d95c56ece7fc155d7cb3
  3. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <27524f65621f490184f2ace44cd8e5f3685af4a3
  4. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <412a30b1b28d6073ba29c46a2b0f324c5936293f
  5. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <6ed469df0bfbef3e4b44fca954a781919db9f7ab
  6. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <743c78d455e784097011ea958b27396001181567
  7. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <822203f6355f4b322d21e7115419f6b98284be25
  8. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <9f2ab98371c2f2488bf3bf3f9b2a73510545e9c1
  9. Affected versionversion=8c26c4e2694a163d525976e804d81cd955bbb40c <c6f58ff2d4c552927fe9a187774e668ebba6c7aa

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.10; version=8c26c4e2694a163d525976e804d81cd955bbb40c <033bc52f35868c2493a2d95c56ece7fc155d7cb3; version=8c26c4e2694a163d525976e804d81cd955bbb40c <27524f65621f490184f2ace44cd8e5f3685af4a3; version=8c26c4e2694a163d525976e804d81cd955bbb40c <412a30b1b28d6073ba29c46a2b0f324c5936293f; version=8c26c4e2694a163d525976e804d81cd955bbb40c <6ed469df0bfbef3e4b44fca954a781919db9f7ab; version=8c26c4e2694a163d525976e804d81cd955bbb40c <743c78d455e784097011ea958b27396001181567; version=8c26c4e2694a163d525976e804d81cd955bbb40c <822203f6355f4b322d21e7115419f6b98284be25; version=8c26c4e2694a163d525976e804d81cd955bbb40c <9f2ab98371c2f2488bf3bf3f9b2a73510545e9c1; version=8c26c4e2694a163d525976e804d81cd955bbb40c <c6f58ff2d4c552927fe9a187774e668ebba6c7aa

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS: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

T1499.004Endpoint Denial of Service: Application or System Exploitation

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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