CVE - CVE-2022-49313

CVE-ID
CVE-2022-49313	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2dcec0bc142be2096af71a5703d63237127db204 URL:https://git.kernel.org/stable/c/2dcec0bc142be2096af71a5703d63237127db204 MISC:https://git.kernel.org/stable/c/4187b291a76664a3c03d3f0d9bfadc8322881868 URL:https://git.kernel.org/stable/c/4187b291a76664a3c03d3f0d9bfadc8322881868 MISC:https://git.kernel.org/stable/c/4d378f2ae58138d4c55684e1d274e7dd94aa6524 URL:https://git.kernel.org/stable/c/4d378f2ae58138d4c55684e1d274e7dd94aa6524 MISC:https://git.kernel.org/stable/c/9b58d255f27b0ed6a2e43208960864d67579db58 URL:https://git.kernel.org/stable/c/9b58d255f27b0ed6a2e43208960864d67579db58 MISC:https://git.kernel.org/stable/c/a3d380188bde8900c3f604e82b56572896499124 URL:https://git.kernel.org/stable/c/a3d380188bde8900c3f604e82b56572896499124 MISC:https://git.kernel.org/stable/c/b97aae8b43b718314012e8170b7e03dbfd2e7677 URL:https://git.kernel.org/stable/c/b97aae8b43b718314012e8170b7e03dbfd2e7677 MISC:https://git.kernel.org/stable/c/d888753872190abd18f68a7d77b9c7c367f0a7ab URL:https://git.kernel.org/stable/c/d888753872190abd18f68a7d77b9c7c367f0a7ab MISC:https://git.kernel.org/stable/c/f8242044c91cafbba9e320b0fb31abf2429a3221 URL:https://git.kernel.org/stable/c/f8242044c91cafbba9e320b0fb31abf2429a3221 MISC:https://git.kernel.org/stable/c/ffe9440d698274c6462d2e304562c6ddfc8c84df URL:https://git.kernel.org/stable/c/ffe9440d698274c6462d2e304562c6ddfc8c84df
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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