Re: [PATCH v2] hfs: return -EFSCORRUPTED instead of BUG() in hfs_write_inode()

[David Maximiliano Hermitte]

Thank you for the review.

That makes sense. I agree that replacing the BUG() with a silent return is probably not enough if this state indicates serious filesystem corruption.

At this point I would prefer not to slow down the fix by guessing the best HFS/VFS error-handling policy. My main goal was to report and narrow down the reachable BUG() site and provide a minimal tested patch showing that the crash can be avoided.

If someone with more HFS/VFS experience wants to take over the final form of the fix, I would be happy with that. I can also help retest a proposed v3 against the public syzbot reproducer.

Thanks again for taking a look.