CVE-2022-49313

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Source
https://cve.org/CVERecord?id=CVE-2022-49313
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49313.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49313
Downstream
Related
Published
2025-02-26T02:10:42.109Z
Modified
2026-03-12T03:24:59.132263Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
drivers: usb: host: Fix deadlock in oxu_bus_suspend()
Details

In the Linux kernel, the following vulnerability has been resolved:

drivers: usb: host: Fix deadlock in oxubussuspend()

There is a deadlock in oxubussuspend(), which is shown below:

(Thread 1) | (Thread 2) | timeraction() oxubussuspend() | modtimer() spinlockirq() //(1) | (wait a time) ... | oxuwatchdog() deltimersync() | spinlock_irq() //(2) (wait timer to stop) | ...

We hold oxu->lock in position (1) of thread 1, and use deltimersync() to wait timer to stop, but timer handler also need oxu->lock in position (2) of thread 2. As a result, oxubussuspend() will block forever.

This patch extracts deltimersync() from the protection of spinlockirq(), which could let timer handler to obtain the needed lock.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49313.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
b92a78e582b1a45649143dc86e526f5824092478
Fixed
9b58d255f27b0ed6a2e43208960864d67579db58
Fixed
a3d380188bde8900c3f604e82b56572896499124
Fixed
f8242044c91cafbba9e320b0fb31abf2429a3221
Fixed
2dcec0bc142be2096af71a5703d63237127db204
Fixed
ffe9440d698274c6462d2e304562c6ddfc8c84df
Fixed
d888753872190abd18f68a7d77b9c7c367f0a7ab
Fixed
4187b291a76664a3c03d3f0d9bfadc8322881868
Fixed
b97aae8b43b718314012e8170b7e03dbfd2e7677
Fixed
4d378f2ae58138d4c55684e1d274e7dd94aa6524

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49313.json"