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=175f8c04580000
start commit: 16cd1c265776 Merge tag 'timers-cleanups-2025-04-06' of git..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=14df8c04580000
console output: https://syzkaller.appspot.com/x/log.txt?x=10df8c04580000
kernel config: https://syzkaller.appspot.com/x/.config?x=c79406130aa88d22
dashboard link: https://syzkaller.appspot.com/bug?extid=4036165fc595a74b09b2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14f9bd98580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1571c7e4580000
Reported-by: syzbot+4036165fc595a74b09b2@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 00b35530811f ("batman-adv: adopt netdev_hold() / netdev_put()")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
