SB2025071144 - Improper locking in Linux kernel intel iavf driver

Description

This security bulletin contains information about 1 security vulnerability.

1) Improper locking (CVE-ID: CVE-2025-38311)

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.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/120f28a6f314fef7f282c99f196923fe44081cad
• https://git.kernel.org/stable/c/620ab4d6215de0b25227f9fff1a8c7fb66837cb8