Commit 840c2fbc authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: Fix assertion pop in bch2_ptr_swab() 



This runs on extents that haven't yet been validated, so we don't want
to assert that we have a valid entry type.

Reported-by: default avatar <syzbot+4f29c3f12f864d8a8d17@syzkaller.appspotmail.com>
Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 657d4282

fs/bcachefs/extents.c

+4 −1
Original line number Diff line number Diff line
@@ -1364,7 +1364,7 @@ void bch2_ptr_swab(struct bkey_s k) 
	for (entry = ptrs.start;

	     entry < ptrs.end;

	     entry = extent_entry_next(entry)) {

		switch (extent_entry_type(entry)) {

		switch (__extent_entry_type(entry)) {

		case BCH_EXTENT_ENTRY_ptr:

			break;

		case BCH_EXTENT_ENTRY_crc32:
@@ -1384,6 +1384,9 @@ void bch2_ptr_swab(struct bkey_s k) 
			break;

		case BCH_EXTENT_ENTRY_rebalance:

			break;

		default:

			/* Bad entry type: will be caught by validate() */

			return;

		}

	}

}