linux — security advisory
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.
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 5.18.5-1
- CVEs
- CVE-2022-49313
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:54 UTC · Revision 1
Source evidence
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.
osv:DEBIAN-CVE-2022-49313
linux
Fixed versions: 5.18.5-1
linux
Fixed versions: 5.18.5-1
linux
Fixed versions: 5.18.5-1
Complete source record
{
"id": "2aa96b5d7133f4a85c7e8d7acfe9dfd8c240cac5c6f0d9d6a66066f469a53977",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-49313",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-49313",
"summary": "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.",
"evidence": "osv:DEBIAN-CVE-2022-49313",
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],
"modified": "2026-10-15T08:02:36.079262014Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-49313"
]
},
"related_cves": [
{
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"evidence": "/upstream"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 323705,
"published_at": "2025-02-26T07:01:08.143+00:00"
}