Ma Wupeng

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** A memory leak issue has been resolved in the Linux kernel. The problem occurs when percpu memory allocation fails during the creation of a new IPC namespace, and the failure is not handled properly, leading to a memory leak. The issue is caused by the improper release of ipc sysctls and mq sysctls. The estimated number of potentially affected devices worldwide is not available. There is no information about real-world incidents where this issue was exploited. Technical details about the issue include: - The `create ipc ns` function is involved in the issue. - The `msg init ns` function may fail, leading to the memory leak. - The `setup mq sysctls` and `copy ipcs` functions are also part of the affected code path. - The backtrace of the issue includes several kernel functions, such as ` kmalloc node track caller noprof`, `kmemdup noprof`, and `do syscall 64`. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.