CVE-2022-49261

Kernel memory disclosure or corruption via unchecked length

Published Feb 26, 2025 · Updated Aug 5, 2026

Out-of-bounds memory access in the Linux kernel allows local users to crash the system through the i915 GEM vm_access handler. The handler passes an unchecked len value to memcpy, allowing the copy to cross the mapped GEM object's boundary and read or write adjacent kernel memory. Access requires local privileges and an i915-backed GEM mapping; the resulting memory access can disclose data, corrupt data, or trigger a kernel oops.

CVSS severity7.8
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds memory access in the Linux kernel allows local users to crash the system through the i915 GEM vm_access handler. The handler passes an unchecked len value to memcpy, allowing the copy to cross the mapped GEM object's boundary and read or write adjacent kernel memory. Access requires local privileges and an i915-backed GEM mapping; the resulting memory access can disclose data, corrupt data, or trigger a kernel oops.

The record

CVE
CVE-2022-49261
Published
Feb 26, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE 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=5.8
  2. Affected versionversion=9f909e215fea0652023b9ed09d3d7bfe10386423 <312d3d4f49e12f97260bcf972c848c3562126a18
  3. Affected versionversion=9f909e215fea0652023b9ed09d3d7bfe10386423 <3886a86e7e6cc6ce2ce93c440fecd8f42aed0ce7
  4. Affected versionversion=9f909e215fea0652023b9ed09d3d7bfe10386423 <5f6e560e3e86ac053447524224e411034f41f5c7
  5. Affected versionversion=9f909e215fea0652023b9ed09d3d7bfe10386423 <89ddcc81914ab58cc203acc844f27d55ada8ec0e
  6. Affected versionversion=9f909e215fea0652023b9ed09d3d7bfe10386423 <8f0ebea8f6e8c474264ed97d7a64c9c09ed4f5aa

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.8; version=9f909e215fea0652023b9ed09d3d7bfe10386423 <312d3d4f49e12f97260bcf972c848c3562126a18; version=9f909e215fea0652023b9ed09d3d7bfe10386423 <3886a86e7e6cc6ce2ce93c440fecd8f42aed0ce7; version=9f909e215fea0652023b9ed09d3d7bfe10386423 <5f6e560e3e86ac053447524224e411034f41f5c7; version=9f909e215fea0652023b9ed09d3d7bfe10386423 <89ddcc81914ab58cc203acc844f27d55ada8ec0e; version=9f909e215fea0652023b9ed09d3d7bfe10386423 <8f0ebea8f6e8c474264ed97d7a64c9c09ed4f5aa

Published CVSS scores

5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.4SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
6.7SUSECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.8NVDCVSS: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 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-787Out-of-bounds Write
CWE-125Out-of-bounds Read

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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