CVE-2024-53222

Kernel crash via premature sysfs device exposure

Published Dec 27, 2024 · Updated May 11, 2026

A race condition in the Linux kernel zram driver 6.2 through 6.12.1 allows local users to crash the kernel through sysfs. zram_add() publishes the device with device_add_disk() before comp_algorithm_set() initializes zram->comp_algs[ZRAM_PRIMARY_COMP], so comp_algorithm_show() passes a NULL pointer to strcmp(). Low-privileged local access and winning the post-publication initialization window are required; success crashes the kernel and interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in the Linux kernel zram driver 6.2 through 6.12.1 allows local users to crash the kernel through sysfs. zram_add() publishes the device with device_add_disk() before comp_algorithm_set() initializes zram->comp_algs[ZRAM_PRIMARY_COMP], so comp_algorithm_show() passes a NULL pointer to strcmp(). Low-privileged local access and winning the post-publication initialization window are required; success crashes the kernel and interrupts the host.

The record

CVE
CVE-2024-53222
Published
Dec 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 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=6.2
  2. Affected versionversion=7ac07a26dea79c3892436bce41cce03dcbd3c4c7 <843d366ff19708668d95cda16bb8aba109a93dba
  3. Affected versionversion=7ac07a26dea79c3892436bce41cce03dcbd3c4c7 <c7ee791e538537b281f60945298796f0a3971bbd
  4. Affected versionversion=7ac07a26dea79c3892436bce41cce03dcbd3c4c7 <f364cdeb38938f9d03061682b8ff3779dd1730e5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.2; version=7ac07a26dea79c3892436bce41cce03dcbd3c4c7 <843d366ff19708668d95cda16bb8aba109a93dba; version=7ac07a26dea79c3892436bce41cce03dcbd3c4c7 <c7ee791e538537b281f60945298796f0a3971bbd; version=7ac07a26dea79c3892436bce41cce03dcbd3c4c7 <f364cdeb38938f9d03061682b8ff3779dd1730e5

Published CVSS scores

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

CWE-476NULL Pointer Dereference
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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