CVE-2022-50303

Host crash via compute PASID double release

Published Sep 15, 2025 · Updated Sep 15, 2025

Double free in the Linux kernel AMD KFD driver allows local users to crash the host through an AMD GPU process VM acquisition failure. kfd_process_device_init_vm assigns a compute PASID before taking the pdd->drm_file reference, so error cleanup lets the DRM close path and KFD teardown free the same PASID. Ordinary access to /dev/kfd and an AMDGPU render node is required; PASID reuse also exposes cross-process GPU memory disclosure or corruption.

CVSS severity7.8
High
EPSS probability0.16%
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 Linux kernel AMD KFD driver allows local users to crash the host through an AMD GPU process VM acquisition failure. kfd_process_device_init_vm assigns a compute PASID before taking the pdd->drm_file reference, so error cleanup lets the DRM close path and KFD teardown free the same PASID. Ordinary access to /dev/kfd and an AMDGPU render node is required; PASID reuse also exposes cross-process GPU memory disclosure or corruption.

The record

CVE
CVE-2022-50303
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2025Record 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a799c4c190ea9f0e81028e3eb3037ed0ab17ff5
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <89f0d766c9e3fdeafbed6f855d433c2768cde862
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a02c07b619899179384fde06f951530438a3512d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a799c4c190ea9f0e81028e3eb3037ed0ab17ff5; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <89f0d766c9e3fdeafbed6f855d433c2768cde862; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a02c07b619899179384fde06f951530438a3512d

Published CVSS scores

7.8Linux Kernel CVE TeamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8UbuntuCVSS: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-415Double Free
T1499.004Application 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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