CVE-2022-48662

Kernel crash via prematurely unlinked i915 context

Published Apr 28, 2024 · Updated May 11, 2026

Denial of service in the i915 graphics driver in Linux allows local users to crash the kernel through the i915 performance ioctl. The context_close() path removes i915_gem_context.link from the global context list before the final reference is dropped, so i915_perf can follow a poisoned link.next pointer during list iteration. The path requires local low-privileged access and an Intel i915 graphics device; the demonstrated consequence is a general protection fault.

CVSS severity7.8
High
EPSS probability0.25%
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 i915 graphics driver in Linux allows local users to crash the kernel through the i915 performance ioctl. The context_close() path removes i915_gem_context.link from the global context list before the final reference is dropped, so i915_perf can follow a poisoned link.next pointer during list iteration. The path requires local low-privileged access and an Intel i915 graphics device; the demonstrated consequence is a general protection fault.

The record

CVE
CVE-2022-48662
Published
Apr 28, 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. Apr 28, 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=5.12
  2. Affected versionversion=f8246cf4d9a9025d26c609bb2195e7c0a9ce5c40 <713fa3e4591f65f804bdc88e8648e219fabc9ee1
  3. Affected versionversion=f8246cf4d9a9025d26c609bb2195e7c0a9ce5c40 <d119888b09bd567e07c6b93a07f175df88857e02
  4. Affected versionversion=f8246cf4d9a9025d26c609bb2195e7c0a9ce5c40 <f799e0568d6c153368b177e0bbbde7dcc4ce7f1d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.12; version=f8246cf4d9a9025d26c609bb2195e7c0a9ce5c40 <713fa3e4591f65f804bdc88e8648e219fabc9ee1; version=f8246cf4d9a9025d26c609bb2195e7c0a9ce5c40 <d119888b09bd567e07c6b93a07f175df88857e02; version=f8246cf4d9a9025d26c609bb2195e7c0a9ce5c40 <f799e0568d6c153368b177e0bbbde7dcc4ce7f1d
The Linux Kernel Organization · Linux Kernelversion=5.12; version=f8246cf4d9a9 <713fa3e4591f; version=f8246cf4d9a9 <d119888b09bd; version=f8246cf4d9a9 <f799e0568d6c

Published CVSS scores

7.8SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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.

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Technologies

Your stack

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Your stack

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