PT-2025-27950 · Linux+6 · Linux Kernel+6
Published
2025-04-08
·
Updated
2026-03-14
·
CVE-2025-38177
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:
The issue concerns the
hfsc qlen notify() function in the Linux kernel, which is not idempotent and can cause problems for its callers, such as fq codel dequeue(). To address this, changes were made to ensure hfsc qlen notify() is idempotent, including updating update vf() and using RB EMPTY NODE() and RB CLEAR NODE() in eltree remove(). The issue was reportedly exploited in a kernel CTF as a 1-day exploit.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu