Re: [syzbot] [bcachefs] KASAN: use-after-free Read in scatterwalk_copychunks

[syzbot]

syzbot suspects this issue was fixed by commit:

commit bcf77a05fb3d6210026483703bcacb22ed961c99
Author: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Date:   Fri Nov 8 05:25:18 2024 +0000

    bcachefs: Fix hidden btree errors when reading roots

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10dab1b3980000
start commit:   da4373fbcf00 Merge tag 'thermal-6.12-rc7' of git://git.ker..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=8c4acf719c3fc41e8439
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1579235f980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1379235f980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: bcachefs: Fix hidden btree errors when reading roots

For information about bisection process see: https://goo.gl/tpsmEJ#bisection