On Sun, Nov 12, 2023 at 07:53:53PM +1000, Ronald Monthero wrote: > qnx4 dir name length can vary to be of maximum size > QNX4_NAME_MAX or QNX4_SHORT_NAME_MAX depending on whether > 'link info' entry is stored and the status byte is set. > So to avoid buffer overflow check di_fname length > fetched from (struct qnx4_inode_entry *) > before use in strlen to avoid buffer overflow. >
Inspired by removals of reiserfs and sysv I decided to try to whack qnx4. This here is the only qnx4-specific change made to the fs in years. Are you using the filesystem? Perhaps you just playing around fuzzing and that's how you got there instead?
