ubifs: skip dumping tnc tree when zroot is null

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UBUNTU-CVE-2024-58058

In the Linux kernel, the following vulnerability has been resolved: ubifs: skip dumping tnc tree when zroot is null Clearing slab cache will free all znode in memory and make c-zroot.znode = NULL, then dumping tnc tree will access c-zroot.znode which cause null pointer dereference...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from skipping the dump tnc tree when zroot is null, resulting in a null pointer dereference...