Comment 1 for bug 1745757

I'm not an expert, but I tried running the current GitHub source through a debugger.

The problematic line seems to be in read_fs.c:

https://github.com/plougher/squashfs-tools/blob/7d7f2da27d5c39de89c5fae61eb611666f297c03/squashfs-tools/read_fs.c#L678

 memcpy(dire->name, directory_table + bytes,
  dire->size + 1);

dire->size is 65535.

I'm attaching the 'crash.sfs' file I created (with mksquashfs -p '/ f 444 root root echo').

(If the crash.sfs file itself is invalid, I guess that's a separate issue.)