INFO: task syz-executor.0:7946 blocked for more than 143 seconds.
Not tainted 5.16.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26104 pid: 7946 ppid: 6535 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
device_lock include/linux/device.h:760 [inline]
usbdev_release+0x7a/0x7c0 drivers/usb/core/devio.c:1075
__fput+0x3fc/0x870 fs/file_table.c:280
task_work_run+0x146/0x1c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x209/0x220 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300
do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f063b8e972b
RSP: 002b:00007ffc2a1a9680 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f063b8e972b
RDX: 0000000000000000 RSI: ffffffff81acc452 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c221668
R10: 0000000000001294 R11: 0000000000000293 R12: 00007f063ba4ab60
R13: 00007f063ba4ab60 R14: 00007f063ba49f60 R15: 0000000000028f7c
Showing all locks held in the system:
5 locks held by kworker/u4:1/10:
#0: ffff8880b9b395d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:478
#1: ffff8880b9b27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4c1/0x780 kernel/sched/psi.c:880
#2: ffff88806d770d40 (&wdev->mtx){+.+.}-{3:3}, at: sdata_lock net/mac80211/ieee80211_i.h:1013 [inline]
#2: ffff88806d770d40 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0xa0/0x14f0 net/mac80211/ibss.c:1681
#3: ffffffff8cb1dd40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:267
#4: ffffffff90e43300 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x97/0x6a0 lib/debugobjects.c:661
1 lock held by khungtaskd/27:
#0: ffffffff8cb1dd40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:4/985:
1 lock held by in:imklog/6177:
#0: ffff888024551c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:990
5 locks held by kworker/1:9/7886:
#0: ffff888014b93538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90005c27d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffff888147a44220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff888147a44220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5662
#3: ffff888147a585c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff888147a585c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0xce1/0x27d0 drivers/usb/core/hub.c:5279
#4: ffff8881479ee068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1ef/0x2df0 drivers/usb/core/hub.c:4703
1 lock held by syz-executor.0/7946:
#0: ffff888147a44220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#0: ffff888147a44220 (&dev->mutex){....}-{3:3}, at: usbdev_release+0x7a/0x7c0 drivers/usb/core/devio.c:1075
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7448 Comm: kworker/0:4 Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:memcpy+0x18/0x60 mm/kasan/shadow.c:65
Code: 41 5f e9 cb e0 7f 02 31 c0 5b 41 5c 41 5e 41 5f c3 90 41 57 41 56 41 54 53 49 89 d4 49 89 f6 49 89 ff 48 8b 5c 24 20 48 89 f7 <48> 89 d6 31 d2 48 89 d9 e8 8b ed ff ff 84 c0 74 2c 4c 89 ff 4c 89
RSP: 0018:ffffc90002dbfa38 EFLAGS: 00000246
RAX: 40ff72d3180a0700 RBX: ffffffff849ff9f4 RCX: 0000000000000002
RDX: 0000000000000006 RSI: ffffc90002dbfaa0 RDI: ffffc90002dbfaa0
RBP: ffffc90002dbfb60 R08: dffffc0000000000 R09: fffffbfff1ff33f9
R10: fffffbfff1ff33f9 R11: 0000000000000000 R12: 0000000000000006
R13: dffffc0000000000 R14: ffffc90002dbfaa0 R15: ffff88809c15a006
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f04249d4000 CR3: 0000000070053000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
_get_random_bytes+0x1c4/0x230 drivers/char/random.c:1539
eth_random_addr include/linux/etherdevice.h:232 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:753 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:802 [inline]
nsim_dev_trap_report_work+0x34c/0xaf0 drivers/net/netdevsim/dev.c:843
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 41 5f pop %r15
2: e9 cb e0 7f 02 jmpq 0x27fe0d2
7: 31 c0 xor %eax,%eax
9: 5b pop %rbx
a: 41 5c pop %r12
c: 41 5e pop %r14
e: 41 5f pop %r15
10: c3 retq
11: 90 nop
12: 41 57 push %r15
14: 41 56 push %r14
16: 41 54 push %r12
18: 53 push %rbx
19: 49 89 d4 mov %rdx,%r12
1c: 49 89 f6 mov %rsi,%r14
1f: 49 89 ff mov %rdi,%r15
22: 48 8b 5c 24 20 mov 0x20(%rsp),%rbx
27: 48 89 f7 mov %rsi,%rdi
* 2a: 48 89 d6 mov %rdx,%rsi <-- trapping instruction
2d: 31 d2 xor %edx,%edx
2f: 48 89 d9 mov %rbx,%rcx
32: e8 8b ed ff ff callq 0xffffedc2
37: 84 c0 test %al,%al
39: 74 2c je 0x67
3b: 4c 89 ff mov %r15,%rdi
3e: 4c rex.WR
3f: 89 .byte 0x89