Re: [syzbot] [sound?] [mm?] kernel BUG in filemap_fault

[syzbot]

syzbot has bisected this issue to:

commit 00b35530811f2aa3d7ceec2dbada80861c7632a8
Author: Eric Dumazet <edumazet@xxxxxxxxxx>
Date:   Thu Feb 6 14:04:22 2025 +0000

    batman-adv: adopt netdev_hold() / netdev_put()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11f8df4c580000
start commit:   7cdabafc0012 Merge tag 'trace-v6.15-rc1' of git://git.kern..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=13f8df4c580000
console output: https://syzkaller.appspot.com/x/log.txt?x=15f8df4c580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=fb8650d88e9fb80f
dashboard link: https://syzkaller.appspot.com/bug?extid=f37372d86207b3bb2941
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17eddc04580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11632a3f980000

Reported-by: syzbot+f37372d86207b3bb2941@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 00b35530811f ("batman-adv: adopt netdev_hold() / netdev_put()")

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