INFO: task syz-executor.1:3964 blocked for more than 143 seconds.
Tainted: G W 5.17.0-syzkaller-02172-g6b1f86f8e9c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27288 pid: 3964 ppid: 3608 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x937/0x1090 kernel/sched/core.c:6382
schedule+0xeb/0x1b0 kernel/sched/core.c:6454
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6513
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:673
__mutex_lock kernel/locking/mutex.c:733 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:785
vmci_qp_broker_detach+0x129/0x12b0 drivers/misc/vmw_vmci/vmci_queue_pair.c:2093
ctx_free_ctx drivers/misc/vmw_vmci/vmci_context.c:444 [inline]
kref_put include/linux/kref.h:65 [inline]
vmci_ctx_put+0x7e2/0xf00 drivers/misc/vmw_vmci/vmci_context.c:497
vmci_ctx_enqueue_datagram+0x3a7/0x440 drivers/misc/vmw_vmci/vmci_context.c:360
dg_dispatch_as_host drivers/misc/vmw_vmci/vmci_datagram.c:275 [inline]
vmci_datagram_dispatch+0x479/0xc40 drivers/misc/vmw_vmci/vmci_datagram.c:339
qp_notify_peer drivers/misc/vmw_vmci/vmci_queue_pair.c:1479 [inline]
vmci_qp_broker_detach+0xb35/0x12b0 drivers/misc/vmw_vmci/vmci_queue_pair.c:2186
ctx_free_ctx drivers/misc/vmw_vmci/vmci_context.c:444 [inline]
kref_put include/linux/kref.h:65 [inline]
vmci_ctx_put+0x7e2/0xf00 drivers/misc/vmw_vmci/vmci_context.c:497
vmci_host_close+0x96/0x160 drivers/misc/vmw_vmci/vmci_host.c:143
__fput+0x3fc/0x870 fs/file_table.c:317
task_work_run+0x146/0x1c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:188 [inline]
exit_to_user_mode_loop kernel/entry/common.c:190 [inline]
exit_to_user_mode_prepare+0x1dd/0x200 kernel/entry/common.c:222
__syscall_exit_to_user_mode_work kernel/entry/common.c:304 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:315
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f986b63bc8b
RSP: 002b:00007ffde26e6f60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f986b63bc8b
RDX: 0000001b2ce20000 RSI: 0000001b2ce210e8 RDI: 0000000000000004
RBP: 00007f986b79d960 R08: 0000000000000000 R09: 0000000002547fee
R10: 00007ffde27210b8 R11: 0000000000000293 R12: 000000000001c259
R13: 00007ffde26e7060 R14: 00007ffde26e7080 R15: 0000000000000032
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Tainted: G W 5.17.0-syzkaller-02172-g6b1f86f8e9c7 #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:212 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:369
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 964 Comm: kworker/u4:4 Tainted: G W 5.17.0-syzkaller-02172-g6b1f86f8e9c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:35 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xaf/0x130 kernel/locking/spinlock.c:194
Code: 05 e8 75 38 67 f7 4c 89 f3 48 c1 eb 03 42 80 3c 23 00 74 08 4c 89 f7 e8 7f 9b b1 f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 <42> 80 3c 23 00 74 08 4c 89 f7 e8 e2 9a b1 f7 f6 44 24 21 02 75 4e
RSP: 0018:ffffc900045876a0 EFLAGS: 00000046
RAX: 300e660a9601b200 RBX: 1ffff920008b0ed8 RCX: ffff88801c7c9d00
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8a25a74b
RBP: ffffc90004587728 R08: ffffffff818cdff0 R09: fffffbfff221e357
R10: fffffbfff221e357 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff920008b0ed4 R14: ffffc900045876c0 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00d2f2d10 CR3: 000000000ca8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__debug_check_no_obj_freed lib/debugobjects.c:1002 [inline]
debug_check_no_obj_freed+0x5a2/0x650 lib/debugobjects.c:1023
slab_free_hook mm/slub.c:1703 [inline]
slab_free_freelist_hook+0xcf/0x1a0 mm/slub.c:1754
slab_free mm/slub.c:3523 [inline]
kfree+0xc6/0x390 mm/slub.c:4576
ieee80211_bss_info_update+0x91b/0xbe0 net/mac80211/scan.c:232
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1690/0x2b30 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x713/0xca0 net/mac80211/iface.c:1581
process_one_work+0x86c/0x1190 kernel/workqueue.c:2307
worker_thread+0xab1/0x1300 kernel/workqueue.c:2454
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 05 e8 75 38 67 add $0x673875e8,%eax
5: f7 4c 89 f3 48 c1 eb testl $0x3ebc148,-0xd(%rcx,%rcx,4)
c: 03
d: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
12: 74 08 je 0x1c
14: 4c 89 f7 mov %r14,%rdi
17: e8 7f 9b b1 f7 callq 0xf7b19b9b
1c: 48 c7 44 24 20 00 00 movq $0x0,0x20(%rsp)
23: 00 00
25: 9c pushfq
26: 8f 44 24 20 popq 0x20(%rsp)
* 2a: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 4c 89 f7 mov %r14,%rdi
34: e8 e2 9a b1 f7 callq 0xf7b19b1b
39: f6 44 24 21 02 testb $0x2,0x21(%rsp)
3e: 75 4e jne 0x8e