Resource management error in Linux kernel sched



| Updated: 2025-05-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-37932
CWE-ID CWE-399
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) Resource management error

EUVDB-ID: #VU109572

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-37932

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the htb_qlen_notify() function in net/sched/sch_htb.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.6 - 6.6.89

CPE2.3 External links

https://git.kernel.org/stable/c/0a188c0e197383683fd093ab1ea6ce9a5869a6ea
https://git.kernel.org/stable/c/5ba8b837b522d7051ef81bacf3d95383ff8edce5
https://git.kernel.org/stable/c/73cf6af13153d62f9b76eff422eea79dbc70f15e
https://git.kernel.org/stable/c/a61f1b5921761fbaf166231418bc1db301e5bf59
https://git.kernel.org/stable/c/bbbf5e0f87078b715e7a665d662a2c0e77f044ae
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.90


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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