CVE-2022-50760

Kernel resource leak via unreleased PCI reference

Published Dec 24, 2025 · Updated Dec 24, 2025

Reference-count leak in the amdgpu BIOS loader in Linux allows attackers to retain PCI device references during GPU initialization. When amdgpu_atrm_get_bios finds an ACPI ATRM handle and exits its PCI-device scan, it fails to call pci_dev_put on the retained pdev. The condition is limited to systems using the amdgpu on-platform ATRM BIOS path; published sources report a resource leak but no privilege gain, data access, or demonstrated crash.

CVSS severityUnavailable
Unscored
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reference-count leak in the amdgpu BIOS loader in Linux allows attackers to retain PCI device references during GPU initialization. When amdgpu_atrm_get_bios finds an ACPI ATRM handle and exits its PCI-device scan, it fails to call pci_dev_put on the retained pdev. The condition is limited to systems using the amdgpu on-platform ATRM BIOS path; published sources report a resource leak but no privilege gain, data access, or demonstrated crash.

The record

CVE
CVE-2022-50760
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 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=4.2
  2. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <3360125d721c91d697c71201f18f042ff743e936
  3. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <6611feef35c0c8c4d297b28a7fc6ab3a2c47eca7
  4. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <7c1ddf7c664b5bc91f14b1bdeaa45520ef1760e4
  5. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <8f2d2badf8ca5e7e7c30d88840b695c8af7286f3
  6. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <981024abf5fe605c94d4f906f65d1b3408d628be
  7. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <9d4057d0452243917e12eb19f1599c96f2f05b14
  8. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <a8b54ad7106c0604c4adc4933138b3557739bce0
  9. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <ca54639c7752edf1304d92ff4d0c049d4efc9ba0
  10. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <da7c78ea9e62bb65273d3ff19a3866ec205bfe18

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4.2; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <3360125d721c91d697c71201f18f042ff743e936; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <6611feef35c0c8c4d297b28a7fc6ab3a2c47eca7; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <7c1ddf7c664b5bc91f14b1bdeaa45520ef1760e4; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <8f2d2badf8ca5e7e7c30d88840b695c8af7286f3; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <981024abf5fe605c94d4f906f65d1b3408d628be; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <9d4057d0452243917e12eb19f1599c96f2f05b14; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <a8b54ad7106c0604c4adc4933138b3557739bce0; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <ca54639c7752edf1304d92ff4d0c049d4efc9ba0; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <da7c78ea9e62bb65273d3ff19a3866ec205bfe18

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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