CVE-2024-53131

Kernel crash via premature block-device dereference

Published Dec 4, 2024 · Updated May 11, 2026

NULL pointer dereference in Linux nilfs2 allows local users to crash the kernel by enabling the block_touch_buffer tracepoint. touch_buffer(), called from __nilfs_get_folio_block(), passes a buffer head to the tracepoint before bh->b_bdev is assigned, and the tracepoint dereferences bh->b_bdev->bd_dev. The path requires local low-privileged access, an active nilfs2 filesystem, and the enabled tracepoint; the reported result is a crash or KASAN general protection fault.

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

NULL pointer dereference in Linux nilfs2 allows local users to crash the kernel by enabling the block_touch_buffer tracepoint. touch_buffer(), called from __nilfs_get_folio_block(), passes a buffer head to the tracepoint before bh->b_bdev is assigned, and the tracepoint dereferences bh->b_bdev->bd_dev. The path requires local low-privileged access, an active nilfs2 filesystem, and the enabled tracepoint; the reported result is a crash or KASAN general protection fault.

The record

CVE
CVE-2024-53131
Published
Dec 4, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 4, 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=3.9
  2. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <085556bf8c70e2629e02e79268dac3016a08b8bf
  3. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <19c71cdd77973f99a9adc3190130bc3aa7ae5423
  4. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <3b2a4fd9bbee77afdd3ed5a05a0c02b6cde8d3b9
  5. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <59b49ca67cca7b007a5afd3de0283c8008157665
  6. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <6438f3f42cda825f6f59b4e45ac3a1da28a6f2c9
  7. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <77e47f89d32c2d72eb33d0becbce7abe14d061f4
  8. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <b017697a517f8779ada4e8ce1c2c75dbf60a2636
  9. Affected versionversion=5305cb830834549b9203ad4d009ad5483c5e293f <cd45e963e44b0f10d90b9e6c0e8b4f47f3c92471

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.9; version=5305cb830834549b9203ad4d009ad5483c5e293f <085556bf8c70e2629e02e79268dac3016a08b8bf; version=5305cb830834549b9203ad4d009ad5483c5e293f <19c71cdd77973f99a9adc3190130bc3aa7ae5423; version=5305cb830834549b9203ad4d009ad5483c5e293f <3b2a4fd9bbee77afdd3ed5a05a0c02b6cde8d3b9; version=5305cb830834549b9203ad4d009ad5483c5e293f <59b49ca67cca7b007a5afd3de0283c8008157665; version=5305cb830834549b9203ad4d009ad5483c5e293f <6438f3f42cda825f6f59b4e45ac3a1da28a6f2c9; version=5305cb830834549b9203ad4d009ad5483c5e293f <77e47f89d32c2d72eb33d0becbce7abe14d061f4; version=5305cb830834549b9203ad4d009ad5483c5e293f <b017697a517f8779ada4e8ce1c2c75dbf60a2636; version=5305cb830834549b9203ad4d009ad5483c5e293f <cd45e963e44b0f10d90b9e6c0e8b4f47f3c92471

Published CVSS scores

5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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