Pangliyuan

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** A null pointer dereference issue exists in the Linux kernel. The problem occurs when the slab cache is cleared, freeing all znodes in memory and setting `c->zroot.znode` to `NULL`. Then, when dumping the tnc tree, the code attempts to access `c->zroot.znode`, resulting in a null pointer dereference. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.