watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.6:14661] Modules linked in: irq event stamp: 19526595 hardirqs last enabled at (19526594): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (19526595): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (19476650): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (19476653): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 14661 Comm: syz-executor.6 Not tainted 6.1.0-rc5-next-20221121 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1fd/0x2130 Code: 48 89 54 24 28 48 89 74 24 20 44 89 5c 24 18 e8 e9 16 6a 00 48 8b 54 24 28 48 8b 74 24 20 44 8b 5c 24 18 8b 0c 95 f8 56 49 86 <8d> 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 f8 56 49 86 49 RSP: 0018:ffff88806cf095b0 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000002 RCX: 00000000000203ff RDX: 0000000000007c6b RSI: 0000000000007c6b RDI: ffffffff864b48a4 RBP: ffff88806cf09688 R08: ffffffff860f4592 R09: ffffffff860f4596 R10: ffffed100d9e12d3 R11: 0000000000038001 R12: ffff88806cf09671 R13: ffff88806cf09690 R14: ffff88806cf09630 R15: ffffffff817c6b8f FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fefc821d6f4 CR3: 0000000005426000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e0/0x410 __create_object+0x3d/0xc10 __kmem_cache_alloc_node+0x257/0x400 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__orc_find+0x42/0xf0 Code: 84 99 00 00 00 49 89 fd 4c 39 e7 0f 87 a2 00 00 00 49 bf 00 00 00 00 00 fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de <49> 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 RSP: 0018:ffff888021f673f8 EFLAGS: 00000216 RAX: ffffffff811ec55c RBX: ffffffff85d6ad4c RCX: ffffffff811ec6a3 RDX: 0000000000000000 RSI: ffffffff8606a742 RDI: ffffffff85d6ad4c RBP: ffffffff85d6ad50 R08: ffffffff8606a742 R09: ffffffff860fe9d6 R10: ffffed10043ecea5 R11: 0000000000038001 R12: ffffffff85d6ad4c R13: ffffffff85d6ad4c R14: ffffffff85d6ad4c R15: dffffc0000000000 unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x95/0xb0 __call_rcu_common.constprop.0+0x6a/0xa40 kmem_cache_free+0xc1/0x610 kernfs_put.part.0+0x225/0x460 kernfs_put+0x46/0x50 kernfs_remove_by_name_ns+0xbc/0x130 sysfs_unmerge_group+0xe7/0x170 dpm_sysfs_remove+0x7d/0xb0 device_del+0x210/0xfd0 hci_unregister_dev+0x228/0x380 vhci_release+0x80/0x100 __fput+0x263/0xa40 task_work_run+0x174/0x280 do_exit+0xa8e/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21a5/0x22e0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f81e68fab19 Code: Unable to access opcode bytes at 0x7f81e68faaef. RSP: 002b:00007f81e3e70188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000006 RBX: 00007f81e6a0df60 RCX: 00007f81e68fab19 RDX: 0000000000105802 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007f81e6954f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc7d5ebdf R14: 00007f81e3e70300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rc5-next-20221121 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 de 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806ce09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8440902b RDX: fffffbfff0b48c19 RSI: 0000000000000004 RDI: ffffffff85a460c0 RBP: ffffffff85a460c0 R08: 0000000000000000 R09: ffffffff85a460c3 R10: fffffbfff0b48c18 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48c18 R14: 0000000000000001 R15: 1ffff1100d9c1346 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f7f51b650 CR3: 000000001860e000 CR4: 0000000000350ef0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 99 01 fe cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 83 11 42 00 fb f4 80 44 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffffffff85407e20 EFLAGS: 00000202 RAX: ffffffff84406bf0 RBX: ffffffff85432940 RCX: ffffffff843e75e2 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88806ce34cc3 R10: ffffed100d9c6998 R11: 0000000000000001 R12: fffffbfff0a86528 R13: ffffffff85d10a50 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x88/0xd0 do_idle+0x3bd/0x530 cpu_startup_entry+0x18/0x20 rest_init+0x166/0x260 arch_call_rest_init+0x13/0x2c start_kernel+0x4a2/0x4c7 secondary_startup_64_no_verify+0xe0/0xeb rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 26301 jiffies s: 2105 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 14661 Comm: syz-executor.6 Tainted: G L 6.1.0-rc5-next-20221121 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__lock_acquire+0x5bb/0x5e70 Code: 2a 00 00 0f b6 43 21 31 d0 a8 60 74 c2 41 83 c6 01 65 8b 05 6f df d6 7e 85 c0 0f 85 c7 0a 00 00 48 b8 00 00 00 00 00 fc ff df <48> 8b 5c 24 40 48 89 da 48 c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 RSP: 0018:ffff88806cf09bd0 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffff888044d4bee0 RCX: 0000000000000001 RDX: 0000000000000020 RSI: 0000000000000001 RDI: ffffffff87639099 RBP: ffff888044d4bf01 R08: 0000000000000000 R09: dffffc0000000000 R10: fffffbfff0ec6909 R11: 0000000000000001 R12: ffff888044d4b580 R13: ffff888044d4bf08 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fefc821d6f4 CR3: 0000000005426000 CR4: 0000000000350ee0 Call Trace: lock_acquire+0x1a6/0x530 _raw_spin_lock_irq+0x36/0x50 __hrtimer_run_queues+0x1ee/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__orc_find+0x42/0xf0 Code: 84 99 00 00 00 49 89 fd 4c 39 e7 0f 87 a2 00 00 00 49 bf 00 00 00 00 00 fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de <49> 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 RSP: 0018:ffff888021f673f8 EFLAGS: 00000216 RAX: ffffffff811ec55c RBX: ffffffff85d6ad4c RCX: ffffffff811ec6a3 RDX: 0000000000000000 RSI: ffffffff8606a742 RDI: ffffffff85d6ad4c RBP: ffffffff85d6ad50 R08: ffffffff8606a742 R09: ffffffff860fe9d6 R10: ffffed10043ecea5 R11: 0000000000038001 R12: ffffffff85d6ad4c R13: ffffffff85d6ad4c R14: ffffffff85d6ad4c R15: dffffc0000000000 unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x95/0xb0 __call_rcu_common.constprop.0+0x6a/0xa40 kmem_cache_free+0xc1/0x610 kernfs_put.part.0+0x225/0x460 kernfs_put+0x46/0x50 kernfs_remove_by_name_ns+0xbc/0x130 sysfs_unmerge_group+0xe7/0x170 dpm_sysfs_remove+0x7d/0xb0 device_del+0x210/0xfd0 hci_unregister_dev+0x228/0x380 vhci_release+0x80/0x100 __fput+0x263/0xa40 task_work_run+0x174/0x280 do_exit+0xa8e/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21a5/0x22e0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f81e68fab19 Code: Unable to access opcode bytes at 0x7f81e68faaef. RSP: 002b:00007f81e3e70188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000006 RBX: 00007f81e6a0df60 RCX: 00007f81e68fab19 RDX: 0000000000105802 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007f81e6954f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc7d5ebdf R14: 00007f81e3e70300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 48 89 54 24 28 mov %rdx,0x28(%rsp) 5: 48 89 74 24 20 mov %rsi,0x20(%rsp) a: 44 89 5c 24 18 mov %r11d,0x18(%rsp) f: e8 e9 16 6a 00 callq 0x6a16fd 14: 48 8b 54 24 28 mov 0x28(%rsp),%rdx 19: 48 8b 74 24 20 mov 0x20(%rsp),%rsi 1e: 44 8b 5c 24 18 mov 0x18(%rsp),%r11d 23: 8b 0c 95 f8 56 49 86 mov -0x79b6a908(,%rdx,4),%ecx * 2a: 8d 56 01 lea 0x1(%rsi),%edx <-- trapping instruction 2d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 34: fc ff df 37: 48 8d 3c 95 f8 56 49 lea -0x79b6a908(,%rdx,4),%rdi 3e: 86 3f: 49 rex.WB