WARNING: CPU: 1 PID: 10691 at kernel/locking/lockdep.c:3315 __lock_acquire+0x13bf/0x4700 kernel/locking/lockdep.c:3315 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 10691 Comm: syz-executor.2 Not tainted 5.0.0-rc7+ #101 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 kobject: 'loop5' (000000004f870346): kobject_uevent_env kobject: 'loop5' (000000004f870346): fill_kobj_path: path = '/devices/virtual/block/loop5' panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 kobject: 'loop5' (000000004f870346): kobject_uevent_env fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290 kobject: 'loop5' (000000004f870346): fill_kobj_path: path = '/devices/virtual/block/loop5' invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:__lock_acquire+0x13bf/0x4700 kernel/locking/lockdep.c:3315 Code: 8b 1d 49 ab 05 08 45 85 db 0f 85 d6 f4 ff ff 48 c7 c6 e0 a3 6b 87 48 c7 c7 40 78 6b 87 44 89 9c 24 98 00 00 00 e8 ef 29 ec ff <0f> 0b 44 8b 9c 24 98 00 00 00 e9 af f4 ff ff 8b 3d 7c 67 fe 08 85 RSP: 0018:ffff888069e47140 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000033919247 RCX: 0000000000000000 RDX: 0000000000016d50 RSI: ffffffff815a92c6 RDI: ffffed100d3c8e1a RBP: ffff888069e47310 R08: ffff88806ad2a4c0 R09: fffffbfff1133361 R10: fffffbfff1133360 R11: ffffffff88999b03 R12: ffff88806ad2ad80 R13: ffff88806ad2ad8a R14: 0000000033919247 R15: ffff88806ad2a4c0 kobject: 'loop5' (000000004f870346): kobject_uevent_env kobject: 'loop5' (000000004f870346): fill_kobj_path: path = '/devices/virtual/block/loop5' lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] __queue_work+0x23d/0x1180 kernel/workqueue.c:1437 __queue_delayed_work+0x1d6/0x270 kernel/workqueue.c:1542 mod_delayed_work_on+0xd8/0x200 kernel/workqueue.c:1616 mod_delayed_work include/linux/workqueue.h:542 [inline] addrconf_mod_dad_work+0x3f/0xa0 net/ipv6/addrconf.c:328 addrconf_dad_start+0x76/0xb0 net/ipv6/addrconf.c:3977 addrconf_add_linklocal+0x28c/0x3c0 net/ipv6/addrconf.c:3156 addrconf_addr_gen+0x34d/0x3a0 net/ipv6/addrconf.c:3279 addrconf_dev_config+0x1ea/0x2c0 net/ipv6/addrconf.c:3322 addrconf_notify+0x3c5/0x2280 net/ipv6/addrconf.c:3557 notifier_call_chain+0xc7/0x240 kernel/notifier.c:93 __raw_notifier_call_chain kernel/notifier.c:394 [inline] raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1739 call_netdevice_notifiers_extack net/core/dev.c:1751 [inline] call_netdevice_notifiers net/core/dev.c:1765 [inline] __dev_notify_flags+0x121/0x2c0 net/core/dev.c:7605 dev_change_flags+0x10d/0x170 net/core/dev.c:7643 dev_ifsioc+0x2b0/0x940 net/core/dev_ioctl.c:237 dev_ioctl+0x1b8/0xc70 net/core/dev_ioctl.c:488 sock_do_ioctl+0x1bd/0x300 net/socket.c:973 sock_ioctl+0x32b/0x610 net/socket.c:1074 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f78d35d8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e29 RDX: 0000000020000040 RSI: 0000000000008914 RDI: 0000000000000008 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f78d35d96d4 R13: 00000000004c34d0 R14: 00000000004d6308 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..