filelock: SoftFileLock removes a live holder's marker when another user forges the PID in a writable marker

SoftFileLock, MarkerSoftFileLock, SoftFileLease, their async variants and a FileLock that has fallen back to a soft lock on ENOSYS decide from the record inside the marker file whether its owner is gone. The marker is the file whose presence says a process holds the lock. They do not check who...

GHSA-RFPC-QCW5-3PC4 filelock: SoftFileLock removes a live holder's marker when another user forges the PID in a writable marker

SoftFileLock, MarkerSoftFileLock, SoftFileLease, their async variants and a FileLock that has fallen back to a soft lock on ENOSYS decide from the record inside the marker file whether its owner is gone. The marker is the file whose presence says a process holds the lock. They do not check who...

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

The stale-lock break shared by SoftFileLock, MarkerSoftFileLock and SoftFileLease and their async variants, and a FileLock that has fallen back to a soft lock on ENOSYS, the "not implemented" error recognises the marker it judged stale by two values. The marker is the lock file at , whose presenc...

GHSA-FQ56-3CX3-FJXP filelock: SoftFileLock stale-lock break removes a live lock file on a reused inode number and admits two holders

The stale-lock break shared by SoftFileLock, MarkerSoftFileLock and SoftFileLease and their async variants, and a FileLock that has fallen back to a soft lock on ENOSYS, the "not implemented" error recognises the marker it judged stale by two values. The marker is the lock file at , whose presenc...