#VU112244 Improper error handling in Linux kernel - CVE-2025-38126

Vulnerability identifier: #VU112244

Vulnerability 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-2025-38126

CWE-ID: CWE-388

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to improper error handling within the stmmac_ptp_register() function in drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c, within the stmmac_init_tstamp_counter() function in drivers/net/ethernet/stmicro/stmmac/stmmac_main.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/030ce919e114a111e83b7976ecb3597cefd33f26
https://git.kernel.org/stable/c/32af9c289234990752281c805500dfe03c5b2b8f
https://git.kernel.org/stable/c/379cd990dfe752b38fcf46034698a9a150626c7a
https://git.kernel.org/stable/c/b263088ee8ab14563817a8be3519af8e25225793
https://git.kernel.org/stable/c/bb033c6781ce1b0264c3993b767b4aa9021959c2

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?