CVE-2024-53171 is a use-after-free vulnerability in the Linux kernel's UBIFS filesystem authentication code. It occurs in the ubifs_tnc_end_commit function due to improper handling of node parent pointers after tree splits and deletions. This flaw can lead to memory corruption when accessing freed memory during filesystem commit operations. The vulnerability has a high severity with a CVSS score of 7.8 and affects systems with CONFIG_UBIFS_FS_AUTHENTICATION enabled.