Improper locking in Linux kernel bpf

1) Improper locking

EUVDB-ID: #VU100722

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-2024-53054

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the DEFINE_STATIC_KEY_ARRAY_FALSE() and cgroup_bpf_release_fn() functions in kernel/bpf/cgroup.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/71f14a9f5c7db72fdbc56e667d4ed42a1a760494
https://git.kernel.org/stable/c/0d86cd70fc6a7ba18becb52ad8334d5ad3eca530
https://git.kernel.org/stable/c/6dab3331523ba73db1345d19e6f586dcd5f6efb4
https://git.kernel.org/stable/c/117932eea99b729ee5d12783601a4f7f5fd58a23

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.