CVE-2025-39840

The CVE-2025-39840 in the Linux kernel is a fixed out-of-bounds read in audit_compare_dname_path() when a watch on / coincides with a single-character create under / (e.g., /a). The root cause is that parent_len() returns 1 for "/"; audit_compare_dname_path() can set pathlen to 0 and dereference ...