INFO: task syz.4.361:6739 blocked for more than 143 seconds.
Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.361 state:D stack:27360 pid:6739 tgid:6735 ppid:5845 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
jbd2_log_wait_commit+0x29f/0x4a0 fs/jbd2/journal.c:679
ext4_sync_fs+0x45c/0x710 fs/ext4/super.c:6326
iterate_supers+0xc8/0x190 fs/super.c:934
ksys_sync+0xdb/0x1c0 fs/sync.c:104
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb25497e719
RSP: 002b:00007fb25585f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fb254b35f80 RCX: 00007fb25497e719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb2549f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fb254b35f80 R15: 00007fff84d6e378
INFO: task syz.4.361:6743 blocked for more than 145 seconds.
Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.361 state:D stack:27360 pid:6743 tgid:6735 ppid:5845 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
jbd2_log_wait_commit+0x29f/0x4a0 fs/jbd2/journal.c:679
ext4_sync_fs+0x45c/0x710 fs/ext4/super.c:6326
iterate_supers+0xc8/0x190 fs/super.c:934
ksys_sync+0xdb/0x1c0 fs/sync.c:104
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb25497e719
RSP: 002b:00007fb25583e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fb254b36058 RCX: 00007fb25497e719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb2549f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fb254b36058 R15: 00007fff84d6e378
Showing all locks held in the system:
2 locks held by kworker/u8:0/11:
#0: ffff8880b863ea98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffffc90000107d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000107d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
2 locks held by kworker/1:0/25:
1 lock held by khungtaskd/30:
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
5 locks held by kworker/1:1/52:
2 locks held by getty/5593:
#0: ffff8880310780a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900032532f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
4 locks held by kworker/1:3/5843:
4 locks held by kworker/1:4/5853:
1 lock held by syz.4.361/6739:
#0: ffff88814e21a0e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88814e21a0e0 (&type->s_umount_key#32){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz.4.361/6743:
#0: ffff88814e21a0e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88814e21a0e0 (&type->s_umount_key#32){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
2 locks held by syz.6.1296/8794:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5853 Comm: kworker/1:4 Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: wg-kex-wg0 wg_packet_handshake_receive_worker
RIP: 0010:__kernel_text_address+0xf/0x40 kernel/extable.c:79
Code: e1 9e 00 eb b5 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 53 48 89 fb e8 43 00 00 00 85 c0 <0f> 95 c0 48 c7 c1 00 e0 7b 91 48 39 cb 0f 93 c1 48 c7 c2 3f bb 96
RSP: 0018:ffffc90000a181f0 EFLAGS: 00000002
RAX: 0000000000000001 RBX: ffffffff813601dd RCX: 0000000080000100
RDX: dffffc0000000000 RSI: ffffc90003bd8000 RDI: ffffffff813601dd
RBP: ffffc90000a182b0 R08: ffffc90003bdff20 R09: ffffc90000a18270
R10: dffffc0000000000 R11: fffff52000143050 R12: ffff88804ffa5a00
R13: ffffffff8180a270 R14: dffffc0000000000 R15: 1ffff9200014304d
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30c13ff8 CR3: 000000000e734000 CR4: 0000000000350ef0
Call Trace:
unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0xfd/0x150 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:257 [inline]
__kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4295
kmalloc_noprof include/linux/slab.h:878 [inline]
dummy_urb_enqueue+0x7d/0x780 drivers/usb/gadget/udc/dummy_hcd.c:1272
usb_hcd_submit_urb+0x36e/0x1e80 drivers/usb/core/hcd.c:1533
ath9k_hif_usb_reg_in_cb+0x4ce/0x6e0 drivers/net/wireless/ath/ath9k/hif_usb.c:790
__usb_hcd_giveback_urb+0x42e/0x6e0 drivers/usb/core/hcd.c:1650
dummy_timer+0x856/0x4620 drivers/usb/gadget/udc/dummy_hcd.c:1993
__run_hrtimer kernel/time/hrtimer.c:1691 [inline]
__hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1755
hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1772
handle_softirqs+0x2c7/0x980 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x170/0x200 kernel/softirq.c:389
Code: 8c e8 14 29 70 0a 65 66 8b 05 24 4a ac 7e 66 85 c0 75 5d bf 01 00 00 00 e8 2d b2 0b 00 e8 18 23 45 00 fb 65 8b 05 e8 49 ac 7e <85> c0 75 05 e8 a7 28 a9 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c
RSP: 0018:ffffc90003bdf8c0 EFLAGS: 00000282
RAX: 0000000080000000 RBX: 1ffff9200077bf1c RCX: ffffffff8170cfaa
RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c610a60
RBP: ffffc90003bdf970 R08: ffffffff942d08f7 R09: 1ffffffff285a11e
R10: dffffc0000000000 R11: fffffbfff285a11f R12: dffffc0000000000
R13: 1ffff9200077bf20 R14: ffffc90003bdf900 R15: 0000000000000200
local_bh_enable include/linux/bottom_half.h:33 [inline]
wg_receive_handshake_packet drivers/net/wireguard/receive.c:199 [inline]
wg_packet_handshake_receive_worker+0x795/0xf50 drivers/net/wireguard/receive.c:213
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244