Re: [syzbot] [usb] kernel BUG in __page_table_check_zero

From: syzbot
Date: Sun Oct 20 2024 - 14:12:17 EST


syzbot suspects this issue was fixed by commit:

commit 79a61cc3fc0466ad2b7b89618a6157785f0293b3
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Thu Sep 12 00:11:23 2024 +0000

mm: avoid leaving partial pfn mappings around in error case

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11f76c87980000
start commit: cbf3a2cb156a Merge tag 'nfs-for-6.6-3' of git://git.linux-..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=57da1ac039c4c78a
dashboard link: https://syzkaller.appspot.com/bug?extid=7a9bbb158a7a1071eb27
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15394721680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=152b7af6680000

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

#syz fix: mm: avoid leaving partial pfn mappings around in error case

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