CVE-2022-49203

Kernel compromise via GPU-reset stream double free

Published Feb 26, 2025 · Updated Aug 5, 2026

Double free in the AMD display driver in Linux 5.17 through 5.17.1 allows local users to compromise the kernel via GPU reset. The reset flow preserves valid link-encoder assignments in a backed-up stream state after the current state clears them, so post-reset cleanup releases the same extra stream reference twice. Access to an AMD GPU device node and an active display path is required; exploitation can disclose or modify kernel memory, while a failed attempt can crash or hang the system.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in the AMD display driver in Linux 5.17 through 5.17.1 allows local users to compromise the kernel via GPU reset. The reset flow preserves valid link-encoder assignments in a backed-up stream state after the current state clears them, so post-reset cleanup releases the same extra stream reference twice. Access to an AMD GPU device node and an active display path is required; exploitation can disclose or modify kernel memory, while a failed attempt can crash or hang the system.

The record

CVE
CVE-2022-49203
Published
Feb 26, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1068
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=5.17
  2. Affected versionversion=6d63fcc2a334f7bd15e4e9b1db50a19335d2af4f <32685b32d825ca08c5dec826477332df886c4743
  3. Affected versionversion=6d63fcc2a334f7bd15e4e9b1db50a19335d2af4f <bbfcdd6289ba6f00f0cd7d496946dce9f6c600ac

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.17; version=6d63fcc2a334f7bd15e4e9b1db50a19335d2af4f <32685b32d825ca08c5dec826477332df886c4743; version=6d63fcc2a334f7bd15e4e9b1db50a19335d2af4f <bbfcdd6289ba6f00f0cd7d496946dce9f6c600ac

Published CVSS scores

7.8Linux kernelCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-415Double Free
T1068Exploitation for Privilege Escalation

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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