# CVE-2024-39292: linux: In the Linux kernel, the following vulnerability has been resolved:  um: Add winch to winch_handlers before registeri...

CVE-2024-39292 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2024-39292, released June 24, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-39292
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 24, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kernel-uek ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | kernel-uek-container ol 8 | 0:5.4.17-2136.334.6.el8 | [ELSA-2024-12584](https://patchblox.com/security/data/fix/linux/elsa-2024-12584.md) | Aug 12, 2024 |
| Linux | kernel-uek-container-debug ol 8 | 0:5.4.17-2136.334.6.el8 | [ELSA-2024-12584](https://patchblox.com/security/data/fix/linux/elsa-2024-12584.md) | Aug 12, 2024 |
| Linux | kernel-uek-debug ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | kernel-uek-debug-devel ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | kernel-uek-devel ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | kernel-uek-doc ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | kernel-uek-tools ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | kernel-uek-tools-libs ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.94-1 | [DEBIAN-CVE-2024-39292](https://patchblox.com/security/data/fix/linux/debian-cve-2024-39292.md) | Jun 24, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.9.7-1 | [DEBIAN-CVE-2024-39292](https://patchblox.com/security/data/fix/linux/debian-cve-2024-39292.md) | Jun 24, 2024 |
| Linux | linux Debian 14 | 6.9.7-1 | [DEBIAN-CVE-2024-39292](https://patchblox.com/security/data/fix/linux/debian-cve-2024-39292.md) | Jun 24, 2024 |
| Linux | perf ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |
| Linux | python-perf ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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