PT-2025-46653 · Linux+2 · Linux Kernel+2
Published
2025-10-09
·
Updated
2026-02-24
·
CVE-2025-40175
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw within the idpf driver related to the handling of SKBs (Socket Buffer) in PTP (Precision Time Protocol) flows. Specifically, the issue arises when an SKB is assigned but not consumed by PTP flows, potentially due to a reset during PTP application execution. This can lead to remaining SKBs not being properly released, potentially causing resource leaks. The driver requests a Tx (transmit) timestamp value, cloning SKBs using
skb get to increment the reference counter and prevent premature freeing. A check has been added to the release timestamping function to verify if the SKB assigned to the Tx timestamp latch has been freed, and to release any remaining SKBs.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu