In the Linux kernel, the following vulnerability has been resolved: ipc: mqueue: fix possible memory leak in init_mqueue_fs() commit db7cfc380900 ("ipc: Free mq_sysctls if ipc namespace creation failed") Here's a similar memory leak to the one fixed by the patch above. retire_mq_sysctls need to be called when init_mqueue_fs fails after setup_mq_sysctls.
https://git.kernel.org/stable/c/c579d60f0d0cd87552f64fdebe68b5d941d20309
https://git.kernel.org/stable/c/a1f321051e0dcf2415fb94f81fdc5044cad4c1d6
https://git.kernel.org/stable/c/55b3709c6d68e32cd3fdd2a630b1f4c97d51b17c