The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.
- https://usn.ubuntu.com/3698-1/
- https://usn.ubuntu.com/3698-2/
No PoCs found on GitHub currently.