Race condition in Linux kernel sched



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-38193
CWE-ID CWE-362
Exploitation vector Local
Public exploit N/A
Vulnerable software
Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Race condition

EUVDB-ID: #VU112324

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-38193

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the sfq_change() function in net/sched/sch_sfq.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3 External links

https://git.kernel.org/stable/c/0357da9149eac621f39e235a135ebf155f01f7c3
https://git.kernel.org/stable/c/590b2d7d0beadba2aa576708a05a05f0aae39295
https://git.kernel.org/stable/c/7ca52541c05c832d32b112274f81a985101f9ba8
https://git.kernel.org/stable/c/956b5aebb349449b38d920d444ca1392d43719d1
https://git.kernel.org/stable/c/b11a50544af691b787384089b68f740ae20a441b
https://git.kernel.org/stable/c/f9b97d466e6026ccbdda30bb5b71965b67ccbc82


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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