CVE-2024-39292
CVE-2024-39292 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-38193
- Weakness: CWE-415
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2024-39292?
- 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.
- How severe is CVE-2024-39292?
- CVE-2024-39292 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2024-39292 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-39292?
- CVE-2024-39292 primarily affects Linux Linux Kernel. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2024-39292?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-39292 have an EU (EUVD) identifier?
- Yes. CVE-2024-39292 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38193.
- When was CVE-2024-39292 published?
- CVE-2024-39292 was published on 2024-06-24 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4
- https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2
- https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14
- https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0
- https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33
- https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1
- https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101
- https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Affected products (2)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.10.0:rc1:*:*:*:*:*:*
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