CVE-2026-68450

In the Linux kernel, the following vulnerability has been resolved: btrfs: free mapping node on duplicate reloc root insert addrelocroot allocates a mappingnode before inserting it into rc-relocroottree. If rbsimpleinsert finds an existing entry, it returns the existing rbnode and leaves the newl...

CVE-2026-68450

The CVE-2026-68450 issue affects the Linux kernel’s btrfs relocation root handling. Specifically, __add_reloc_root() allocates a mapping_node before inserting it into rc->reloc_root_tree; if rb_simple_insert() finds an existing entry, it returns the existing rb_node and leaves the newly alloca...