CVE-2023-53441

CVE-2023-53441 is a memory leak vulnerability in the Linux kernel's BPF cpumap component. Specifically, the cpu_map_update_elem function fails to properly release allocated memory when kthread_stop is called before the kthread's threadfn executes. This affects Linux kernel versions where this specific BPF functionality is present. The vulnerability has a CVSSv3.1 score of 5.5 (Medium), indicating a local attack vector with low attack complexity. A successful exploit could lead to a denial of service (A:H) due to memory exhaustion, but does not impact confidentiality or integrity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE. It is not listed on the CISA KEV catalog.