INFO: task kworker/1:8:5101 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-syzkaller-00182-g25aa0bebba72 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:8 state:D stack:24248 pid:5101 ppid:2 flags:0x00004000
Workqueue: events_power_efficient reg_check_chans_work
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
wiphy_lock include/net/cfg80211.h:5776 [inline]
reg_leave_invalid_chans net/wireless/reg.c:2450 [inline]
reg_check_chans_work+0x108/0xda0 net/wireless/reg.c:2465
process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Showing all locks held in the system:
4 locks held by kworker/0:1/9:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8d329570 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8d329930 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8d3293a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/1:2/918:
#0: ffff888028bb7138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2572
#1: ffffc90004e27d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2574
#2: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4635
4 locks held by kworker/0:2/921:
3 locks held by ipv6_addrconf/2598:
#0: ffff888028bb7138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2572
#1: ffffc9000b9cfd00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2574
#2: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4635
2 locks held by getty/4771:
#0: ffff88814ab2c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2187
4 locks held by kworker/0:3/5057:
4 locks held by kworker/0:4/5089:
4 locks held by kworker/1:8/5101:
#0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x7e3/0x12c0 kernel/workqueue.c:2572
#1: ffffc90004c0fd00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x82b/0x12c0 kernel/workqueue.c:2574
#2: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x91/0xda0 net/wireless/reg.c:2462
#3: ffff88807a848768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5776 [inline]
#3: ffff88807a848768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_leave_invalid_chans net/wireless/reg.c:2450 [inline]
#3: ffff88807a848768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_check_chans_work+0x108/0xda0 net/wireless/reg.c:2465
4 locks held by kworker/0:8/5149:
2 locks held by kworker/0:10/6821:
4 locks held by kworker/0:17/6830:
3 locks held by kworker/0:0/12137:
1 lock held by syz-executor.3/12289:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6425
1 lock held by syz-executor.3/12291:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: do_ip_setsockopt+0x612/0x3e10 net/ipv4/ip_sockglue.c:955
1 lock held by syz-executor.4/12299:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6425
1 lock held by syz-executor.3/12332:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6425
1 lock held by syz-executor.0/12347:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: do_ip_setsockopt+0x612/0x3e10 net/ipv4/ip_sockglue.c:955
1 lock held by syz-executor.0/12351:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6425
1 lock held by syz-executor.4/12369:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6425
1 lock held by syz-executor.3/12373:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6425
1 lock held by syz-executor.4/12380:
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff8e4bb488 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7d4/0xf50 net/core/rtnetlink.c:6425
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc5-syzkaller-00182-g25aa0bebba72 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5149 Comm: kworker/0:8 Not tainted 6.5.0-rc5-syzkaller-00182-g25aa0bebba72 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events cfg80211_wiphy_work
RIP: 0010:unwind_next_frame+0x1888/0x2390 arch/x86/kernel/unwind_orc.c:648
Code: 89 f2 eb 41 4c 8d 71 02 48 83 c1 03 4c 89 f0 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 02 0a 00 00 48 89 c8 48 c1 e8 03 0f b6 04 18 <84> c0 0f 85 18 0a 00 00 49 0f bf 06 48 8b 74 24 10 48 01 c6 49 8d
RSP: 0018:ffffc90000006330 EFLAGS: 00000a07
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff8f8ba657
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc90000006460
RBP: ffffffff8f8ba658 R08: ffffc9000000645f R09: 0000000000000000
R10: ffffc90000006450 R11: fffff52000000c8c R12: 1ffffffff1f174cb
R13: 1ffff92000000c81 R14: ffffffff8f8ba656 R15: ffffc90000006400
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fef393c1990 CR3: 000000000d130000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:162 [inline]
slab_free_hook mm/slub.c:1792 [inline]
slab_free_freelist_hook mm/slub.c:1818 [inline]
slab_free mm/slub.c:3801 [inline]
kmem_cache_free+0x292/0x500 mm/slub.c:3823
br_nf_dev_queue_xmit+0x4e8/0x1a80
NF_HOOK+0x6b1/0x770 include/linux/netfilter.h:303
br_nf_post_routing+0xa13/0xe60 net/bridge/br_netfilter_hooks.c:856
nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline]
nf_hook_slow+0xb2/0x1f0 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:258 [inline]
NF_HOOK+0x280/0x420 include/linux/netfilter.h:301
br_forward_finish+0xe5/0x140 net/bridge/br_forward.c:66
br_nf_forward_finish+0xa2c/0xde0 net/bridge/br_netfilter_hooks.c:567
NF_HOOK+0x6b1/0x770 include/linux/netfilter.h:303
br_nf_forward_ip+0xb60/0xf90 net/bridge/br_netfilter_hooks.c:637
nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline]
nf_hook_slow+0xb2/0x1f0 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:258 [inline]
NF_HOOK+0x280/0x420 include/linux/netfilter.h:301
__br_forward+0x482/0x640 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
maybe_deliver+0xb3/0x160 net/bridge/br_forward.c:189
br_flood+0x2e4/0x660 net/bridge/br_forward.c:235
br_handle_frame_finish+0x1930/0x2010 net/bridge/br_input.c:210
br_nf_hook_thresh+0x46e/0x580 net/bridge/br_netfilter_hooks.c:1048
br_nf_pre_routing_finish_ipv6+0x9cf/0xcb0
NF_HOOK include/linux/netfilter.h:303 [inline]
br_nf_pre_routing_ipv6+0x361/0x720 net/bridge/br_netfilter_ipv6.c:178
nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:272 [inline]
br_handle_frame+0x9e6/0x1490 net/bridge/br_input.c:417
__netif_receive_skb_core+0x13a0/0x40e0 net/core/dev.c:5346
__netif_receive_skb_one_core net/core/dev.c:5450 [inline]
__netif_receive_skb+0x120/0x530 net/core/dev.c:5566
process_backlog+0x34b/0x710 net/core/dev.c:5894
__napi_poll+0xc7/0x470 net/core/dev.c:6460
napi_poll net/core/dev.c:6527 [inline]
net_rx_action+0x78b/0x1010 net/core/dev.c:6660
__do_softirq+0x2ab/0x908 kernel/softirq.c:553
do_softirq+0x11b/0x1e0 kernel/softirq.c:454
__local_bh_enable_ip+0x1b5/0x1f0 kernel/softirq.c:381
spin_unlock_bh include/linux/spinlock.h:396 [inline]
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2887 [inline]
cfg80211_inform_bss_frame_data+0xe8d/0x1870 net/wireless/scan.c:2912
ieee80211_bss_info_update+0x80c/0xb20 net/mac80211/scan.c:211
ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
ieee80211_ibss_rx_queued_mgmt+0x18e5/0x2ca0 net/mac80211/ibss.c:1642
ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
ieee80211_iface_work+0x7bd/0xcf0 net/mac80211/iface.c:1658
cfg80211_wiphy_work+0x21e/0x250 net/wireless/core.c:435
process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304