CVE-2024-53109

Local kernel crash via incorrect VMA preallocation

Published Dec 2, 2024 · Updated Aug 5, 2026

A denial of service in affected Linux 6.6 through 6.12-rc7 builds allows local users to crash NOMMU kernels through a whole-VMA unmap. The mm/nommu.c deletion path passes a VMA rather than NULL to vma_iter_prealloc(), computes the wrong maple-tree store state, and leaves iterator traversal inconsistent. Any unprivileged local process on a NOMMU build can reach the path with mmap() and munmap(); triggering it interrupts the host by crashing the kernel.

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

A denial of service in affected Linux 6.6 through 6.12-rc7 builds allows local users to crash NOMMU kernels through a whole-VMA unmap. The mm/nommu.c deletion path passes a VMA rather than NULL to vma_iter_prealloc(), computes the wrong maple-tree store state, and leaves iterator traversal inconsistent. Any unprivileged local process on a NOMMU build can reach the path with mmap() and munmap(); triggering it interrupts the host by crashing the kernel.

The record

CVE
CVE-2024-53109
Published
Dec 2, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 2, 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=6.6
  2. Affected versionversion=b5df09226450165c434084d346fcb6d4858b0d52 <247d720b2c5d22f7281437fd6054a138256986ba
  3. Affected versionversion=b5df09226450165c434084d346fcb6d4858b0d52 <8bbf0ab631cdf1dade6745f137cff98751e6ced7
  4. Affected versionversion=b5df09226450165c434084d346fcb6d4858b0d52 <aceaf33b7666b72dfb86e0aa977be81e3bcbc727

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.6; version=b5df09226450165c434084d346fcb6d4858b0d52 <247d720b2c5d22f7281437fd6054a138256986ba; version=b5df09226450165c434084d346fcb6d4858b0d52 <8bbf0ab631cdf1dade6745f137cff98751e6ced7; version=b5df09226450165c434084d346fcb6d4858b0d52 <aceaf33b7666b72dfb86e0aa977be81e3bcbc727

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5NIST NVDCVSS: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

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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