CVE-2022-49313

System hang via USB suspend deadlock

Published Feb 26, 2025 · Updated May 11, 2026

Improper locking in the Linux kernel's OXU210HP USB host driver allows local users to hang the system during bus suspension. The oxu_bus_suspend() path calls del_timer_sync() while holding oxu->lock, while oxu_watchdog() waits for that lock, so both threads block indefinitely. An active OXU210HP controller and local low-privilege access are required; the consequence is an indefinite kernel hang.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper locking in the Linux kernel's OXU210HP USB host driver allows local users to hang the system during bus suspension. The oxu_bus_suspend() path calls del_timer_sync() while holding oxu->lock, while oxu_watchdog() waits for that lock, so both threads block indefinitely. An active OXU210HP controller and local low-privilege access are required; the consequence is an indefinite kernel hang.

The record

CVE
CVE-2022-49313
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.29
  2. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <2dcec0bc142be2096af71a5703d63237127db204
  3. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <4187b291a76664a3c03d3f0d9bfadc8322881868
  4. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <4d378f2ae58138d4c55684e1d274e7dd94aa6524
  5. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <9b58d255f27b0ed6a2e43208960864d67579db58
  6. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <a3d380188bde8900c3f604e82b56572896499124
  7. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <b97aae8b43b718314012e8170b7e03dbfd2e7677
  8. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <d888753872190abd18f68a7d77b9c7c367f0a7ab
  9. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <f8242044c91cafbba9e320b0fb31abf2429a3221
  10. Affected versionversion=b92a78e582b1a45649143dc86e526f5824092478 <ffe9440d698274c6462d2e304562c6ddfc8c84df

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.29; version=b92a78e582b1a45649143dc86e526f5824092478 <2dcec0bc142be2096af71a5703d63237127db204; version=b92a78e582b1a45649143dc86e526f5824092478 <4187b291a76664a3c03d3f0d9bfadc8322881868; version=b92a78e582b1a45649143dc86e526f5824092478 <4d378f2ae58138d4c55684e1d274e7dd94aa6524; version=b92a78e582b1a45649143dc86e526f5824092478 <9b58d255f27b0ed6a2e43208960864d67579db58; version=b92a78e582b1a45649143dc86e526f5824092478 <a3d380188bde8900c3f604e82b56572896499124; version=b92a78e582b1a45649143dc86e526f5824092478 <b97aae8b43b718314012e8170b7e03dbfd2e7677; version=b92a78e582b1a45649143dc86e526f5824092478 <d888753872190abd18f68a7d77b9c7c367f0a7ab; version=b92a78e582b1a45649143dc86e526f5824092478 <f8242044c91cafbba9e320b0fb31abf2429a3221; version=b92a78e582b1a45649143dc86e526f5824092478 <ffe9440d698274c6462d2e304562c6ddfc8c84df

Published CVSS scores

5.5NVDCVSS: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.

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-667Improper Locking
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo