syzbot


WARNING in call_netdevice_notifiers_info (2)

Status: upstream: reported on 2024/11/25 13:16
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+9b66539a997baee14f5d@syzkaller.appspotmail.com
First crash: 2d09h, last: 2d09h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [net?] WARNING in call_netdevice_notifiers_info (2) 0 (1) 2024/11/25 13:16
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in call_netdevice_notifiers_info batman C done 20 461d 463d 23/28 fixed on 2023/10/12 12:47

Sample crash report:
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>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/24 13:44 net fcc79e1714e8 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in call_netdevice_notifiers_info
* Struck through repros no longer work on HEAD.