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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49313 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: drivers: usb: host: Fix deadlock in oxu_bus_suspend() There is a deadlock in oxu_bus_suspend(), which is shown below: (Thread 1) | (Thread 2) | timer_action() oxu_bus_suspend() | mod_timer() spin_lock_irq() //(1) | (wait a time) ... | oxu_watchdog() del_timer_sync() | spin_lock_irq() //(2) (wait timer to stop) | ... We hold oxu->lock in position (1) of thread 1, and use del_timer_sync() to wait timer to stop, but timer handler also need oxu->lock in position (2) of thread 2. As a result, oxu_bus_suspend() will block forever. This patch extracts del_timer_sync() from the protection of spin_lock_irq(), which could let timer handler to obtain the needed lock.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/2dcec0bc142be2096af71a5703d63237127db204 Patch 
https://git.kernel.org/stable/c/4187b291a76664a3c03d3f0d9bfadc8322881868 Patch 
https://git.kernel.org/stable/c/4d378f2ae58138d4c55684e1d274e7dd94aa6524 Patch 
https://git.kernel.org/stable/c/9b58d255f27b0ed6a2e43208960864d67579db58 Patch 
https://git.kernel.org/stable/c/a3d380188bde8900c3f604e82b56572896499124 Patch 
https://git.kernel.org/stable/c/b97aae8b43b718314012e8170b7e03dbfd2e7677 Patch 
https://git.kernel.org/stable/c/d888753872190abd18f68a7d77b9c7c367f0a7ab Patch 
https://git.kernel.org/stable/c/f8242044c91cafbba9e320b0fb31abf2429a3221 Patch 
https://git.kernel.org/stable/c/ffe9440d698274c6462d2e304562c6ddfc8c84df Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-667 Improper Locking cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49313
NVD Published Date:
02/26/2025
NVD Last Modified:
04/14/2025
Source:
kernel.org