[v6.1] INFO: task hung in nsim_create

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 4078fa637fcd Linux 6.1.91
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=175a95e0980000
kernel config: https://syzkaller.appspot.com/x/.config?x=715ba80acfd3def4
dashboard link: https://syzkaller.appspot.com/bug?extid=dd6c57fde9951ac68152
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/2443dfe91c62/disk-4078fa63.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/12dbc2af3348/vmlinux-4078fa63.xz
kernel image: https://storage.googleapis.com/syzbot-assets/da3589238e32/bzImage-4078fa63.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+dd6c57...@syzkaller.appspotmail.com

INFO: task syz-executor.1:3587 blocked for more than 143 seconds.
Not tainted 6.1.91-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:21736 pid:3587 ppid:1 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
nsim_init_netdevsim drivers/net/netdevsim/netdev.c:310 [inline]
nsim_create+0x30c/0x3f0 drivers/net/netdevsim/netdev.c:365
__nsim_dev_port_add+0x6ba/0xb10 drivers/net/netdevsim/dev.c:1393
nsim_dev_port_add_all+0x33/0xe0 drivers/net/netdevsim/dev.c:1451
nsim_drv_probe+0x80e/0xb20 drivers/net/netdevsim/dev.c:1605
really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
__driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
driver_probe_device+0x50/0x420 drivers/base/dd.c:815
__device_attach_driver+0x2cf/0x510 drivers/base/dd.c:943
bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
__device_attach+0x359/0x570 drivers/base/dd.c:1015
bus_probe_device+0xba/0x1e0 drivers/base/bus.c:487
device_add+0xb48/0xfd0 drivers/base/core.c:3686
nsim_bus_dev_new drivers/net/netdevsim/bus.c:290 [inline]
new_device_store+0x3e5/0x800 drivers/net/netdevsim/bus.c:167
kernfs_fop_write_iter+0x3a2/0x4f0 fs/kernfs/file.c:330
call_write_iter include/linux/fs.h:2265 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7ae/0xba0 fs/read_write.c:584
ksys_write+0x19c/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fcbaa07bc2f
RSP: 002b:00007ffe41ecc620 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcbaa07bc2f
RDX: 0000000000000003 RSI: 00007ffe41ecc670 RDI: 0000000000000005
RBP: 00007fcbaa0c9067 R08: 0000000000000000 R09: 00007ffe41ecc477
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 00007ffe41ecc670 R14: 00007fcbaacd4620 R15: 0000000000000003
</TASK>
INFO: task syz-executor.2:3589 blocked for more than 143 seconds.
Not tainted 6.1.91-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:21736 pid:3589 ppid:1 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
rtnl_lock net/core/rtnetlink.c:74 [inline]
rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2508
netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1352
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1874
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x480/0x600 net/socket.c:2148
__do_sys_sendto net/socket.c:2160 [inline]
__se_sys_sendto net/socket.c:2156 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2156
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fac9de7ebdc
RSP: 002b:00007fffa7c73f50 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fac9ead35c0 RCX: 00007fac9de7ebdc
RDX: 0000000000000030 RSI: 00007fac9ead3610 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007fffa7c73fa4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006
R13: 0000000000000000 R14: 00007fac9ead3610 R15: 0000000000000000
</TASK>
INFO: task syz-executor.3:3590 blocked for more than 144 seconds.
Not tainted 6.1.91-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:21208 pid:3590 ppid:1 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
rtnl_lock net/core/rtnetlink.c:74 [inline]
rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2508
netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1352
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1874
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x480/0x600 net/socket.c:2148
__do_sys_sendto net/socket.c:2160 [inline]
__se_sys_sendto net/socket.c:2156 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2156
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0efee7ebdc
RSP: 002b:00007ffdcdeda430 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f0effad4620 RCX: 00007f0efee7ebdc
RDX: 0000000000000040 RSI: 00007f0effad4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffdcdeda484 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f0effad4670 R15: 0000000000000000
</TASK>
INFO: task syz-executor.4:3593 blocked for more than 144 seconds.
Not tainted 6.1.91-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:21016 pid:3593 ppid:1 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
del_device_store+0xf8/0x480 drivers/net/netdevsim/bus.c:209
kernfs_fop_write_iter+0x3a2/0x4f0 fs/kernfs/file.c:330
call_write_iter include/linux/fs.h:2265 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7ae/0xba0 fs/read_write.c:584
ksys_write+0x19c/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7effa4a7bc2f
RSP: 002b:00007ffd49ce9bd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007effa4a7bc2f
RDX: 0000000000000001 RSI: 00007ffd49ce9c20 RDI: 0000000000000005
RBP: 00007effa4ac9043 R08: 0000000000000000 R09: 00007ffd49ce9a27
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 00007ffd49ce9c20 R14: 00007effa56d4620 R15: 0000000000000003
</TASK>
INFO: task kworker/0:7:3622 blocked for more than 144 seconds.
Not tainted 6.1.91-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7 state:D stack:27032 pid:3622 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
addrconf_dad_work+0xcc/0x16b0 net/ipv6/addrconf.c:4114
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d12ae50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d12b650 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
3 locks held by kworker/0:1/14:
#0: ffff888012470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90000137d20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: regdb_fw_cb+0x7e/0x1b0 net/wireless/reg.c:1053
1 lock held by khungtaskd/28:
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494
2 locks held by getty/3303:
#0: ffff888027140098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188
3 locks held by kworker/0:4/3571:
#0: ffff888012471938 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc9000454fd20 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x8d/0xdb0 net/wireless/reg.c:2498
3 locks held by kworker/1:3/3574:
#0: ffff888028fcdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc9000450fd20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x15/0x30 net/ipv6/addrconf.c:4655
7 locks held by syz-executor.1/3587:
#0: ffff88801bd12460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x269/0xba0 fs/read_write.c:580
#1: ffff88807c5de888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1e7/0x4f0 fs/kernfs/file.c:321
#2: ffff888022366918 (kn->active#52){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20b/0x4f0 fs/kernfs/file.c:322
#3: ffffffff8dc0dd28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x1ad/0x800 drivers/net/netdevsim/bus.c:160
#4: ffff888145aa40e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#4: ffff888145aa40e8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8a/0x570 drivers/base/dd.c:990
#5: ffff888145aa62f8 (&devlink->lock_key#4){+.+.}-{3:3}, at: nsim_drv_probe+0xc9/0xb20 drivers/net/netdevsim/dev.c:1539
#6: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: nsim_init_netdevsim drivers/net/netdevsim/netdev.c:310 [inline]
#6: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: nsim_create+0x30c/0x3f0 drivers/net/netdevsim/netdev.c:365
1 lock held by syz-executor.2/3589:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.3/3590:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
4 locks held by syz-executor.4/3593:
#0: ffff88801bd12460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x269/0xba0 fs/read_write.c:580
#1: ffff888059b29488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1e7/0x4f0 fs/kernfs/file.c:321
#2: ffff888022366a00 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20b/0x4f0 fs/kernfs/file.c:322
#3: ffffffff8dc0dd28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xf8/0x480 drivers/net/netdevsim/bus.c:209
3 locks held by kworker/0:7/3622:
#0: ffff888028fcdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90004ca7d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x16b0 net/ipv6/addrconf.c:4114
1 lock held by syz-executor.0/3624:
1 lock held by syz-executor.0/3627:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.1/3641:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.3/3644:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.2/3645:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.4/3654:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.0/3657:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.1/3666:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.3/3669:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.2/3670:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
1 lock held by syz-executor.4/3674:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:__lock_acquire+0xf7f/0x1f80 kernel/locking/lockdep.c:5045
Code: 00 8b 1b 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 c2 49 90 be 08 00 00 00 e8 09 97 77 00 48 0f a3 1d c1 4a df 0e <0f> 83 bb 01 00 00 48 8d 04 5b 48 c1 e0 06 48 8d 98 20 21 19 90 48
RSP: 0018:ffffc90000107100 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 000000000000033d RCX: ffffffff816a7757
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9049c280
RBP: af8103161e2f5f38 R08: dffffc0000000000 R09: fffffbfff2093851
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88813feb4658
R13: ffff88813feb3b80 R14: 0000000000000000 R15: 1ffff11027fd68df
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ea7a4ce030 CR3: 00000000288ba000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
cfg80211_bss_update+0x88/0x21e0 net/wireless/scan.c:1763
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2434 [inline]
cfg80211_inform_bss_frame_data+0xae4/0x1680 net/wireless/scan.c:2467
ieee80211_bss_info_update+0x847/0xf00 net/mac80211/scan.c:190
ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1962/0x2dd0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1632 [inline]
ieee80211_iface_work+0x7aa/0xce0 net/mac80211/iface.c:1686
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>


---
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