Hello,syzbot has tested the proposed patch and the reproducer did not trigger crash:
Reported-and-tested-by: syzbot+9c69c282adc4edd2b540@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested on: commit: 59ef64de ovl: detect overlapping layers git tree: https://github.com/amir73il/linux.git ovl-check-overlap kernel config: https://syzkaller.appspot.com/x/.config?x=f3ee46e9dfc8a383 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Note: testing is done by a robot and is best-effort only.