#VU112790 Improper locking in Linux kernel - CVE-2025-38311

Vulnerability identifier: #VU112790

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-2025-38311

CWE-ID: CWE-667

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 locking within the iavf_configure(), iavf_clear_adv_rss_conf(), iavf_finish_config(), iavf_watchdog_step(), iavf_watchdog_task(), iavf_disable_vf(), iavf_reset_task(), wake_up(), iavf_adminq_task(), iavf_configure_clsflower(), iavf_open(), iavf_free_all_rx_resources(), iavf_close(), iavf_shaper_set(), iavf_shaper_del(), iavf_probe(), iavf_suspend() and iavf_remove() functions in drivers/net/ethernet/intel/iavf/iavf_main.c, within the iavf_add_fdir_ethtool() and iavf_set_adv_rss_hash_opt() functions in drivers/net/ethernet/intel/iavf/iavf_ethtool.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/120f28a6f314fef7f282c99f196923fe44081cad
https://git.kernel.org/stable/c/620ab4d6215de0b25227f9fff1a8c7fb66837cb8

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?