Re: [syzbot] [fs?] BUG: unable to handle kernel NULL pointer dereference in do_pagemap_scan

syzbot
2024-08-08T05:20:04Z

syzbot suspects this issue was fixed by commit:

commit 4cccb6221cae6d020270606b9e52b1678fc8b71a
Author: Muhammad Usama Anjum <usama.anjum@collabora.com>
Date: Tue Jan 9 11:24:42 2024 +0000

fs/proc/task_mmu: move mmu notification mechanism inside mm lock

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=141753f9980000
start commit: fbafc3e621c3 Merge tag 'for_linus' of git://git.kernel.org..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=298e57794135adf0
dashboard link: https://syzkaller.appspot.com/bug?extid=f9238a0a31f9b5603fef
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1108a595e80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16777bbee80000

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

#syz fix: fs/proc/task_mmu: move mmu notification mechanism inside mm lock

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