CVE-2026-112935 filelock: SoftFileLock stale-lock break removes a live lock file on a reused inode number and admits two holders

filelock is a platform-independent file lock for Python. From 3.22.0 until 4.2.1, SoftFileLock can break a stale marker after an attacker frees its own marker following the stale read, an honest contender creates a live successor on the reused inode, and the successor's modification time is not...