PT-2025-42251 · Linux · Linux Kernel
Published
2025-09-18
·
Updated
2025-10-16
·
CVE-2025-39976
CVSS v2.0
6.0
Medium
| Vector | AV:L/AC:H/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists within the Linux kernel related to the
futex hash allocate default() function. Specifically, the copy process() function utilizes an incorrect error exit path following a failure within futex hash allocate default(). This results in improper lock handling, where locks (tasklist lock and siglock) are unlocked in the wrong sequence, potentially leading to instability or unexpected behavior. The correct exit label, bad fork cancel cgroup, should be used instead of the current exit path. The sched cgroup fork() function does not allocate resources requiring freeing.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Allocation of Resources Without Limits
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel