Vulnerabilities > CVE-2024-39292 - Double Free vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33
- https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0
- https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14
- https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2
- https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4
- https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0
- https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1
- https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101