PT-2024-33859 · Linux+7 · Linux Kernel+7
Published
2024-10-21
·
Updated
2025-10-03
·
CVE-2024-50019
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel versions prior to 6.6.58
Description:
The issue arises when calling kthread stop() on an unparked per-cpu kthread, triggering a warning due to the kthread bind() function expecting the task to be inactive and in TASK PARKED state. This warning occurs because the wake-up call is ignored when the target is not in TASK PARKED state, but for per CPU kthreads, the wake-up is preceded by a call to kthread bind(), which expects the task to be inactive and in TASK PARKED state.
Recommendations:
To resolve the issue, update to Linux kernel version 6.6.58 or later. As a temporary workaround, consider disabling the
kthread stop() function for per-cpu kthreads until a patch is available. Restrict access to the vulnerable kthread bind() function to minimize the risk of exploitation. Avoid using the kthread stop() function on unparked per-cpu kthreads until the issue is resolved.Exploit
Fix
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu