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.
- CVSS 3.1
- 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-25)
- CWE
- CWE-415
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
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