Re: [syzbot] KASAN: stack-out-of-bounds Write in check_move_unevictable_pages

From: syzbot
Date: Tue Jun 07 2022 - 20:47:49 EST


syzbot has bisected this issue to:

commit 15603c238d1318c66c49df232fb2e2631a0062a0
Author: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Date: Sat Jun 4 21:39:09 2022 +0000

vmscan: Add check_move_unevictable_folios()

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11ad0107f00000
start commit: 73d0e32571a0 Add linux-next specific files for 20220607
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=13ad0107f00000
console output: https://syzkaller.appspot.com/x/log.txt?x=15ad0107f00000
kernel config: https://syzkaller.appspot.com/x/.config?x=448ee2b64e828049
dashboard link: https://syzkaller.appspot.com/bug?extid=8847ae8c7bc46bc9c10e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14359627f00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=177d5f3ff00000

Reported-by: syzbot+8847ae8c7bc46bc9c10e@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 15603c238d13 ("vmscan: Add check_move_unevictable_folios()")

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