INFO: task syz.3.206:5482 blocked for more than 143 seconds.
Not tainted 5.15.170-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.206 state:D stack:23392 pid: 5482 ppid: 4487 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1055
__down_read_common kernel/locking/rwsem.c:1239 [inline]
__down_read kernel/locking/rwsem.c:1252 [inline]
down_read+0x9a/0x2e0 kernel/locking/rwsem.c:1500
iterate_supers+0xac/0x1e0 fs/super.c:716
ksys_sync+0xb9/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f41b4337719
RSP: 002b:00007f41b27af038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f41b44eef80 RCX: 00007f41b4337719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f41b43aa32e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f41b44eef80 R15: 00007ffe93627b78
</TASK>
INFO: task syz.4.207:5507 blocked for more than 144 seconds.
Not tainted 5.15.170-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.207 state:D stack:24024 pid: 5507 ppid: 4172 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1055
__down_read_common kernel/locking/rwsem.c:1239 [inline]
__down_read kernel/locking/rwsem.c:1252 [inline]
down_read+0x9a/0x2e0 kernel/locking/rwsem.c:1500
iterate_supers+0xac/0x1e0 fs/super.c:716
ksys_sync+0xb9/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9d943e7719
RSP: 002b:00007f9d9285f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f9d9459ef80 RCX: 00007f9d943e7719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f9d9445a32e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9d9459ef80 R15: 00007ffc1f4d50e8
</TASK>
INFO: task syz.7.210:5514 blocked for more than 145 seconds.
Not tainted 5.15.170-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.210 state:D stack:24024 pid: 5514 ppid: 4755 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1055
__down_read_common kernel/locking/rwsem.c:1239 [inline]
__down_read kernel/locking/rwsem.c:1252 [inline]
down_read+0x9a/0x2e0 kernel/locking/rwsem.c:1500
iterate_supers+0xac/0x1e0 fs/super.c:716
ksys_sync+0xb9/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fd292c98719
RSP: 002b:00007fd291110038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fd292e4ff80 RCX: 00007fd292c98719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fd292d0b32e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd292e4ff80 R15: 00007ffcf5338358
</TASK>
Showing all locks held in the system:
2 locks held by kworker/0:0/7:
6 locks held by kworker/0:1/13:
#0: ffff888141fe4938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90000d27d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffff888147f87220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff888147f87220 (&dev->mutex){....}-{3:3}, at: hub_event+0x208/0x54c0 drivers/usb/core/hub.c:5769
#3: ffff88814841a5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3125 [inline]
#3: ffff88814841a5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5351 [inline]
#3: ffff88814841a5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5595 [inline]
#3: ffff88814841a5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5741 [inline]
#3: ffff88814841a5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2238/0x54c0 drivers/usb/core/hub.c:5823
#4: ffff888147d0ff68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5352 [inline]
#4: ffff888147d0ff68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5595 [inline]
#4: ffff888147d0ff68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5741 [inline]
#4: ffff888147d0ff68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2260/0x54c0 drivers/usb/core/hub.c:5823
#5: ffffffff8d3ac208 (quirk_mutex){+.+.}-{3:3}, at: usb_detect_dynamic_quirks drivers/usb/core/quirks.c:674 [inline]
#5: ffffffff8d3ac208 (quirk_mutex){+.+.}-{3:3}, at: usb_detect_quirks+0x165/0x520 drivers/usb/core/quirks.c:703
1 lock held by khungtaskd/27:
#0: ffffffff8c91fc60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by kworker/u4:2/154:
#0: ffff8880b903a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
#1: ffff8880b9027848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53d/0x810 kernel/sched/psi.c:891
#2: ffffffff8c91fc60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
#3: ffff8880b903a318 (&rq->__lock){-.-.}-{2:2}, at: rcu_preempt_deferred_qs_irqrestore+0x25e/0xc50 kernel/rcu/tree_plugin.h:513
1 lock held by syslogd/3526:
#0: ffff8880b903a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
1 lock held by dhcpcd/3835:
#0: ffffffff8da32208 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x12e/0x6d0 net/netlink/af_netlink.c:2349
2 locks held by getty/3920:
#0: ffff88814cfa2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90002cbe2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by kworker/0:5/4207:
#0: ffff888017070938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003097d20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffff888019de0240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x2cd/0x4120 drivers/net/netdevsim/fib.c:1478
4 locks held by kworker/u4:6/4312:
#0: ffff8880171cd938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003227d20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8da26650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 net/core/net_namespace.c:561
#3: ffffffff8da32208 (rtnl_mutex){+.+.}-{3:3}, at: fib6_rules_net_exit+0xe/0x50 net/ipv6/fib6_rules.c:506
1 lock held by syz.3.206/5482:
#0:
ffff88805b96e0e0 (&type->s_umount_key#54){++++}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:716
1 lock held by syz.4.207/5507:
#0: ffff88805b96e0e0 (&type->s_umount_key#54){++++}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:716
1 lock held by syz.7.210/5514:
#0: ffff88805b96e0e0 (&type->s_umount_key#54){++++}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:716
1 lock held by syz.5.264/5739:
#0: ffff88805b96e0e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x210/0x940 fs/super.c:229
3 locks held by kworker/1:24/6643:
#0: ffff88802b2c9138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003267d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8da32208 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113
3 locks held by kworker/1:30/6652:
#0: ffff888017070938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc9000425fd20 (fqdir_free_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8c924130 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x9c/0x4e0 kernel/rcu/tree.c:4039
2 locks held by kworker/0:10/7085:
#0: ffff888017072138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003557d20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
3 locks held by kworker/0:12/7088:
#0: ffff88802b2c9138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc9000428fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8da32208 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113
3 locks held by syz-executor/9870:
#0: ffffffff8da32208 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8da32208 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644
#1: ffff8880615a93e8 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_open+0x224/0x410 drivers/net/wireguard/device.c:49
#2: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#2: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845
2 locks held by syz.8.901/10058:
#0: ffff88806487a010 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#0: ffff88806487a010 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff88806487a010 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x98/0x230 net/socket.c:1336
#1: ffffffff8da32208 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0xa0/0x2a0 net/ipv6/ip6mr.c:1584
2 locks held by dhcpcd/10073:
#0: ffff8880619c4120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1678 [inline]
#0: ffff8880619c4120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xd50 net/packet/af_packet.c:3227
#1: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#1: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:845
1 lock held by dhcpcd/10074:
#0: ffff88807ebae120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1678 [inline]
#0: ffff88807ebae120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xd50 net/packet/af_packet.c:3227
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 154 Comm: kworker/u4:2 Not tainted 5.15.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: phy18 ieee80211_iface_work
RIP: 0010:__this_cpu_preempt_check+0x0/0x10 lib/smp_processor_id.c:65
Code: 4c 89 fe 4c 89 f2 e8 3f bf fe ff 48 8b 74 24 30 48 c7 c7 00 05 d9 8a e8 2e bf fe ff e8 99 69 ff ff eb a9 e8 22 eb ff ff 66 90 <48> 89 fe 48 c7 c7 80 04 d9 8a e9 e1 fe ff ff cc eb 1e 0f 1f 00 48
RSP: 0018:ffffc90000dd0e80 EFLAGS: 00000006
RAX: ffffffff8173062d RBX: 0000004fe5557780 RCX: ffff88801d89d940
RDX: 0000000000010000 RSI: 0000000000000000 RDI: ffffffff8a8d0a00
RBP: ffff8880b912a3e8 R08: dffffc0000000000 R09: ffffed1017225441
R10: 0000000000000000 R11: dffffc0000000001 R12: 7fffffffffffffff
R13: ffff8880b912a200 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005638f53dea18 CR3: 0000000023411000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: fffffffffffffff7 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<IRQ>
tick_program_event+0x29/0x120 kernel/time/tick-oneshot.c:25
hrtimer_interrupt+0x546/0x980 kernel/time/hrtimer.c:1827
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x77/0x290 mm/kasan/generic.c:189
Code: 03 49 bb 01 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da <41> 80 39 00 0f 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9 1d 01 00
RSP: 0018:ffffc90001fa78d8 EFLAGS: 00000286
RAX: 1ffff920003f4f01 RBX: 1ffff920003f4f3c RCX: ffffffff8a3cae34
RDX: 0000000000000001 RSI: 0000000000000028 RDI: ffffc90001fa79e0
RBP: 0000000000000005 R08: dffffc0000000000 R09: fffff520003f4f3d
R10: fffffffffffffffc R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: fffff520003f4f41 R15: 0000000000000000
memset+0x1f/0x40 mm/kasan/shadow.c:44
__mutex_lock_common+0xb4/0x25a0 kernel/locking/mutex.c:566
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
ieee80211_ibss_sta_expire net/mac80211/ibss.c:1259 [inline]
ieee80211_sta_merge_ibss net/mac80211/ibss.c:1302 [inline]
ieee80211_ibss_work+0x4be/0x1480 net/mac80211/ibss.c:1713
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>