CVE-2022-50464

Service interruption via leaked PCI device references

Published Oct 1, 2025 · Updated Oct 1, 2025

Resource leak in mt7915 PCI initialization in Linux 5.12 through 6.0.15 and 6.1 through 6.1.1 allows local users to interrupt service. The mt7915_pci_init_hif2 function calls pci_get_device for the second host-interface PCI device but fails to release the returned reference with pci_dev_put. Repeated initialization retains device references and can exhaust resources; exposure requires the MediaTek MT7915 second PCI host-interface path and local low-privileged access.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in mt7915 PCI initialization in Linux 5.12 through 6.0.15 and 6.1 through 6.1.1 allows local users to interrupt service. The mt7915_pci_init_hif2 function calls pci_get_device for the second host-interface PCI device but fails to release the returned reference with pci_dev_put. Repeated initialization retains device references and can exhaust resources; exposure requires the MediaTek MT7915 second PCI host-interface path and local low-privileged access.

The record

CVE
CVE-2022-50464
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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=5.12
  2. Affected versionversion=9093cfff72e3e55b703ed38fa1af87c204d89cf1 <2d4b9c7e81f3a4df27749ebecb426b145e68be2a
  3. Affected versionversion=9093cfff72e3e55b703ed38fa1af87c204d89cf1 <5938196cc188ba4323bc6357f5ac55127d715888
  4. Affected versionversion=9093cfff72e3e55b703ed38fa1af87c204d89cf1 <8abc6579667129afd13ff2ccb0319ba3f46e6995

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.12; version=9093cfff72e3e55b703ed38fa1af87c204d89cf1 <2d4b9c7e81f3a4df27749ebecb426b145e68be2a; version=9093cfff72e3e55b703ed38fa1af87c204d89cf1 <5938196cc188ba4323bc6357f5ac55127d715888; version=9093cfff72e3e55b703ed38fa1af87c204d89cf1 <8abc6579667129afd13ff2ccb0319ba3f46e6995

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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

T1499Endpoint Denial of Service

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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