SB20250227124 - Improper locking in Linux kernel net driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper locking (CVE-ID: CVE-2024-57994)

CWE-ID: CWE-667 - Improper Locking

CVSSv4: 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

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

The vulnerability exists due to improper locking within the pfifo_fast_change_tx_queue_len() function in net/sched/sch_generic.c, within the tun_queue_resize() function in drivers/net/tun.c, within the tap_queue_resize() function in drivers/net/tap.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/3257dac521d0ac6653108c755141dce634bb8ff2
• https://git.kernel.org/stable/c/a126061c80d5efb4baef4bcf346094139cd81df6
• https://git.kernel.org/stable/c/e74801b7628dc52b17471aec729bc675479ddc73
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2