watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.2:25780] Modules linked in: irq event stamp: 16736857 hardirqs last enabled at (16736856): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (16736857): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (16628978): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (16628981): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 25780 Comm: syz-executor.2 Not tainted 6.1.0-rc7-next-20221201 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6f/0xf0 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88806ce09780 EFLAGS: 00000212 RAX: 1ffffffff0bab2cb RBX: ffffffff85d59658 RCX: ffffffff8117ddfd RDX: 0000000000000000 RSI: ffffffff86055e0e RDI: ffffffff85d59658 RBP: ffffffff85d59658 R08: ffffffff86055e0e R09: ffffffff86061e54 R10: ffff88806ce09ff8 R11: 0000000000038001 R12: ffffffff85d59658 R13: ffffffff85d59658 R14: ffffffff85d59658 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005568099a8cf8 CR3: 000000000f4e0000 CR4: 0000000000350ef0 Call Trace: 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+0x95/0x410 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 96 f7 ea fc 48 89 ef e8 5e 6f eb fc 80 e7 02 74 06 e8 d4 05 0f fd fb bf 01 00 00 00 29 cc e0 fc 65 8b 05 8a 68 c2 7b 85 c0 74 07 5b 5d e9 3b 29 00 RSP: 0018:ffff8880480ff810 EFLAGS: 00000206 RAX: 0000000000e7e17d RBX: 0000000000000246 RCX: ffffffff812b79ef RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff856d0760 R08: 0000000000000001 R09: ffffffff8762a84f R10: fffffbfff0ec5509 R11: 0000000000000001 R12: ffff88801ace97a0 R13: ffff88800ea3a708 R14: ffff88801ace8558 R15: ffff888008c958c0 find_and_remove_object+0x123/0x170 kmemleak_free+0x25/0x40 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 rfkill_unregister+0xd5/0x240 hci_unregister_dev+0x1ed/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: 0033:0x7f45a3fc6a04 Code: Unable to access opcode bytes at 0x7f45a3fc69da. RSP: 002b:00007f45a15890b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: 0000000000000007 RBX: 00007f45a4126f60 RCX: 00007f45a3fc6a04 RDX: 0000000000000000 RSI: 00007f45a406cf82 RDI: 00000000ffffff9c RBP: 00007f45a406cf82 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffd4b0ba46f R14: 00007f45a1589300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 25782 Comm: syz-executor.4 Not tainted 6.1.0-rc7-next-20221201 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_release+0x520/0x750 Code: 14 11 38 d0 7c 08 84 d2 0f 85 e8 01 00 00 44 8b 05 cd 62 a4 04 45 85 c0 0f 85 96 fe ff ff e9 fc 73 03 03 65 ff 05 f8 6b d7 7e <48> c7 c0 80 38 ce 85 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 RSP: 0018:ffff88806cf08f38 EFLAGS: 00000007 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff812c188c RDX: fffffbfff0ba0dd3 RSI: 0000000000000008 RDI: ffffffff85d06e90 RBP: 1ffff1100d9e11e9 R08: 0000000000000000 R09: ffffffff85d06e97 R10: fffffbfff0ba0dd2 R11: 0000000000000001 R12: ffffffff85608040 R13: ffff88804723d240 R14: 00000000ffffffe4 R15: ffff88806cf09020 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005568099c5af0 CR3: 0000000018666000 CR4: 0000000000350ee0 Call Trace: perf_event_output_forward+0x165/0x280 __perf_event_overflow+0x3ed/0x760 perf_swevent_hrtimer+0x361/0x3d0 __hrtimer_run_queues+0x17f/0xba0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x3f/0x2130 Code: 48 c1 ea 03 49 89 fe 41 55 41 54 55 53 48 83 ec 48 0f b6 04 02 84 c0 74 08 3c 03 0f 8e d2 08 00 00 41 8b 1e 31 c0 85 db 75 13 <48> 83 c4 48 5b 5d 41 5c 41 5d 41 5e 41 5f e9 82 7d 2e 03 48 b8 00 RSP: 0018:ffff88806cf095b0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff88806cf09af0 RCX: 0000000000000000 RDX: 0000000000000102 RSI: ffff88806cf09ac0 RDI: 0000000000000001 RBP: ffff88806cf02000 R08: ffffffff860d5812 R09: ffffffff860d5816 R10: ffffed100d9e12d3 R11: ffff88806cf09670 R12: ffff88806cf09671 R13: ffff88806cf09690 R14: ffff88806cf09630 R15: 0000000000000007 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+0x1e1/0x410 __create_object+0x3d/0xc10 __kmem_cache_alloc_node+0x25b/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:kasan_check_range+0x179/0x1d0 Code: ff ff 41 bb 01 00 00 00 5b 5d 44 89 d8 41 5c e9 c1 16 c4 02 48 85 d2 74 e9 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 db 80 38 00 <74> f2 e9 64 ff ff ff 41 bb 01 00 00 00 44 89 d8 e9 96 16 c4 02 48 RSP: 0018:ffff888036a476b0 EFLAGS: 00000246 RAX: ffffed1002ca7531 RBX: ffffed1002ca7532 RCX: ffffffff817246f8 RDX: ffffed1002ca7532 RSI: 0000000000000004 RDI: ffff88801653a98c RBP: ffffed1002ca7531 R08: 0000000000000000 R09: ffff88801653a98f R10: ffffed1002ca7531 R11: 0000000000000001 R12: ffff88801653a98c R13: 00000000477c3067 R14: 0000000000000000 R15: ffff888036a47ad8 flush_tlb_batched_pending+0x28/0xd0 unmap_page_range+0x9c0/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/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: 0033:0x7f72fc8beb62 Code: Unable to access opcode bytes at 0x7f72fc8beb38. RSP: 002b:00007f72f9e340f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: 0000000020ffc000 RBX: 0000000000008011 RCX: 00007f72fc8beb62 RDX: 0000000000000003 RSI: 0000000000024140 RDI: 0000000020ffc000 RBP: 0000000020ffc000 R08: 0000000000000009 R09: 0000000000000000 R10: 0000000000008011 R11: 0000000000000206 R12: 0000000020000380 R13: 0000000020ffc000 R14: 00000000200001c0 R15: 0000000020ffc000 ---------------- Code disassembly (best guess): 0: 72 4d jb 0x4f 2: 4c 89 e0 mov %r12,%rax 5: 48 29 e8 sub %rbp,%rax 8: 48 89 c2 mov %rax,%rdx b: 48 c1 e8 3f shr $0x3f,%rax f: 48 c1 fa 02 sar $0x2,%rdx 13: 48 01 d0 add %rdx,%rax 16: 48 d1 f8 sar %rax 19: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 1e: 48 89 d8 mov %rbx,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx * 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 04 jl 0x3b 37: 84 d2 test %dl,%dl 39: 75 50 jne 0x8b 3b: 48 63 03 movslq (%rbx),%rax 3e: 48 rex.W 3f: 01 .byte 0x1