[syzbot] [net?] WARNING in call_netdevice_notifiers_info (2)

From: syzbot
Date: Mon Nov 25 2024 - 08:16:36 EST


Hello,

syzbot found the following issue on:

HEAD commit: fcc79e1714e8 Merge tag 'net-next-6.13' of git://git.kernel..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=14ffd75f980000
kernel config: https://syzkaller.appspot.com/x/.config?x=275de99a754927af
dashboard link: https://syzkaller.appspot.com/bug?extid=9b66539a997baee14f5d
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/1539da626e54/disk-fcc79e17.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/d44dbcc68df2/vmlinux-fcc79e17.xz
kernel image: https://storage.googleapis.com/syzbot-assets/76fdad1309ae/bzImage-fcc79e17.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9b66539a997baee14f5d@xxxxxxxxxxxxxxxxxxxxxxxxx

RTNL: assertion failed at net/core/dev.c (1987)
WARNING: CPU: 0 PID: 12 at net/core/dev.c:1987 call_netdevice_notifiers_info+0x106/0x110 net/core/dev.c:1987
Modules linked in:
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: bond0 bond_mii_monitor
RIP: 0010:call_netdevice_notifiers_info+0x106/0x110 net/core/dev.c:1987
Code: cc cc cc cc e8 2b 74 fd f7 c6 05 ec 80 70 06 01 90 48 c7 c7 20 5e 0e 8d 48 c7 c6 00 5e 0e 8d ba c3 07 00 00 e8 db 6c be f7 90 <0f> 0b 90 90 e9 73 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900001176d8 EFLAGS: 00010246
RAX: a4b68b757b823100 RBX: ffff88805a365ac0 RCX: ffff88801befda00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8155fe42 R09: 1ffffffff203c906
R10: dffffc0000000000 R11: fffffbfff203c907 R12: dffffc0000000000
R13: 1ffff92000022ee0 R14: 0000000000000004 R15: ffffc90000117720
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeb14c9ff8 CR3: 000000000e738000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
netdev_state_change+0x11f/0x1a0 net/core/dev.c:1378
linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:177
ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:62
bond_check_dev_link+0x1f1/0x3f0 drivers/net/bonding/bond_main.c:873
bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
bond_mii_monitor+0x49a/0x3170 drivers/net/bonding/bond_main.c:2962
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>


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