PT-2025-44138 · Linux+3 · Linux Kernel+3
Published
2025-08-30
·
Updated
2026-05-07
·
CVE-2025-40070
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 versions prior to 6.17.0-rc3+
Description
The Linux kernel contained an issue in the PPS (Precise Time Protocol Synchronization) subsystem. A warning occurred in
pps register cdev when device registration failed, due to the release hook being set after device registration. This could lead to a use-after-free condition. The issue was addressed by ensuring the release hook is set before device registration. A double free in the failure case in pps register source() was also resolved by removing 'kfree pps'.Recommendations
Update to a version newer than 6.17.0-rc3+ to resolve this issue.
Exploit
Fix
Generation of Error Message Containing Sensitive Information
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu