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

um: Add winch to winch_handlers before registering winch IRQ

Registering a winch IRQ is racy, an interrupt may occur before the winch is
added to the winch_handlers list.

If that happens, register_winch_irq() adds to that list a winch that is
scheduled to be (or has already been) freed, causing a panic later in
winch_cleanup().

Avoid the race by adding the winch to the winch_handlers list before
registering the IRQ, and rolling back if um_request_irq() fails.
Published: 2024-06-24
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3840-1 linux security update
Debian DSA Debian DSA DSA-5730-1 linux security update
Ubuntu USN Ubuntu USN USN-6951-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6951-2 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6951-3 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6951-4 Linux kernel (BlueField) vulnerabilities
Ubuntu USN Ubuntu USN USN-6953-1 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-6972-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6972-2 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6972-3 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6972-4 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-6974-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6974-2 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-6975-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6979-1 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-7008-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7019-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7029-1 Linux kernel vulnerabilities
History

Tue, 04 Nov 2025 18:30:00 +0000

Type Values Removed Values Added
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T20:20:52.234Z

Reserved: 2024-06-21T11:16:40.627Z

Link: CVE-2024-39292

cve-icon Vulnrichment

Updated: 2025-11-04T17:21:58.690Z

cve-icon NVD

Status : Modified

Published: 2024-06-24T14:15:12.943

Modified: 2025-11-04T18:16:30.367

Link: CVE-2024-39292

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-06-24T00:00:00Z

Links: CVE-2024-39292 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses