watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.2:12996] Modules linked in: irq event stamp: 4683887 hardirqs last enabled at (4683886): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4683887): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4549818): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4549821): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 12996 Comm: syz-executor.2 Not tainted 6.1.0-rc5-next-20221114 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_read_lock_held+0x11/0x50 Code: 08 e9 b9 fe ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa e8 97 ee 0a 03 41 b8 01 00 00 00 85 c0 <75> 08 44 89 c0 e9 a9 30 0d 03 e8 60 84 00 00 84 c0 74 1a e8 77 9e RSP: 0018:ffff88806ce09d20 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff888042c90de0 RCX: 0000000000000100 RDX: 1ffff11006638cc9 RSI: ffffffff82fbc0e7 RDI: ffff8880331c6648 RBP: ffff888042c97210 R08: 0000000000000001 R09: 0000000069537748 R10: 0000000069537748 R11: 0000000000000001 R12: ffff8880331c62e8 R13: 000000000000006c R14: ffff8880331c6340 R15: ffff888042c933a0 FS: 00007f02d6d1f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32a25000 CR3: 000000004106c000 CR4: 0000000000350ef0 Call Trace: mac80211_hwsim_beacon_tx+0x107/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x541/0xb50 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:unwind_next_frame+0x344/0x2130 Code: c0 74 06 0f 8e c7 15 00 00 41 c6 46 40 01 49 c7 c0 40 51 4c 85 48 b8 00 00 00 00 00 fc ff df 4d 8d 48 04 4c 89 ca 48 c1 ea 03 <0f> b6 04 02 4c 89 ca 83 e2 07 38 d0 7f 08 84 c0 0f 85 e4 14 00 00 RSP: 0018:ffff888042e376d0 EFLAGS: 00000212 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff819790e7 RDX: 1ffffffff0c23910 RSI: ffffffff8611c87e RDI: ffffffff85de1400 RBP: ffff888042e377a8 R08: ffffffff8611c87e R09: ffffffff8611c882 R10: ffffed10085c6ef7 R11: 0000000000038001 R12: ffff888042e37791 R13: ffff888042e377b0 R14: ffff888042e37750 R15: ffffffff819790e7 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 memcg_list_lru_alloc+0x457/0xb10 kmem_cache_alloc_lru+0x125/0x760 __d_alloc+0x31/0x9c0 d_alloc_pseudo+0x1d/0x70 alloc_file_pseudo+0xd2/0x260 ioctx_alloc+0x529/0x1e10 __x64_sys_io_setup+0x138/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f02d97a9b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f02d6d1f188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce RAX: ffffffffffffffda RBX: 00007f02d98bcf60 RCX: 00007f02d97a9b19 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000004001 RBP: 00007f02d9803f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeb62f9f8f R14: 00007f02d6d1f300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12993 Comm: syz-executor.7 Not tainted 6.1.0-rc5-next-20221114 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lapic_next_deadline+0x25/0x50 Code: 90 90 90 90 90 f3 0f 1e fa 0f ae f0 0f ae e8 0f 31 48 c1 e2 20 b9 e0 06 00 00 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 0f 30 <66> 90 31 c0 e9 c6 f8 2f 03 48 89 c6 31 d2 bf e0 06 00 00 e8 93 b1 RSP: 0018:ffff88806cf09550 EFLAGS: 00000017 RAX: 0000010ae6d5041c RBX: 0000000000000000 RCX: 00000000000006e0 RDX: 000000000000010a RSI: ffff88806cf28100 RDI: 0000000000000268 RBP: ffff88806cf28100 R08: 0000000000000007 R09: 0000000000000000 R10: 00000000000006e4 R11: 0000000000000001 R12: 0000000000000268 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88806cf2b600 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005631e64c7628 CR3: 00000000180c4000 CR4: 0000000000350ee0 Call Trace: clockevents_program_event+0x248/0x360 tick_program_event+0xb0/0x150 hrtimer_interrupt+0x36a/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+0x1c2/0x2130 Code: 8d 43 ff 39 c6 0f 83 8c 15 00 00 48 b8 00 00 00 00 00 fc ff df 89 f2 48 8d 3c 95 b4 30 49 86 48 89 f9 48 c1 e9 03 0f b6 0c 01 <48> 89 f8 83 e0 07 83 c0 03 38 c8 7c 27 84 c9 74 23 48 89 54 24 28 RSP: 0018:ffff88806cf09730 EFLAGS: 00000212 RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 00000000000068eb RSI: 00000000000068eb RDI: ffffffff864ad460 RBP: ffff88806cf09808 R08: ffffffff860f2500 R09: ffffffff860f2504 R10: ffffed100d9e1303 R11: 0000000000038001 R12: ffff88806cf097f1 R13: ffff88806cf09810 R14: ffff88806cf097b0 R15: ffffffff8168eb62 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x82/0x90 __kmalloc_node_track_caller+0x53/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3de/0x1380 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x541/0xb50 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:lock_acquire+0x4/0x530 Code: 48 c7 c7 c8 02 d1 85 e8 4a bb 50 00 e9 d9 fe ff ff 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> b8 00 00 00 00 00 fc ff df 41 57 41 89 f7 41 56 49 89 fe 41 55 RSP: 0018:ffff888031c4f5f0 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff11006389ecd RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff856082e0 RBP: ffff888031c4f648 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800ed56c30 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888031c4fad8 folio_memcg_lock+0x3e/0x4a0 page_remove_rmap+0x102/0x780 unmap_page_range+0x2002/0x2c30 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: 0033:0x7f28a44d2b19 Code: Unable to access opcode bytes at 0x7f28a44d2aef. RSP: 002b:00007f28a1a48188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000007 RBX: 00007f28a45e5f60 RCX: 00007f28a44d2b19 RDX: 00000000003a9900 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007f28a452cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffebd78849f R14: 00007f28a1a48300 R15: 0000000000022000 Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e9 b9 fe ff ff jmpq 0xfffffebe 5: 0f 1f 00 nopl (%rax) 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: f3 0f 1e fa endbr64 1c: e8 97 ee 0a 03 callq 0x30aeeb8 21: 41 b8 01 00 00 00 mov $0x1,%r8d 27: 85 c0 test %eax,%eax * 29: 75 08 jne 0x33 <-- trapping instruction 2b: 44 89 c0 mov %r8d,%eax 2e: e9 a9 30 0d 03 jmpq 0x30d30dc 33: e8 60 84 00 00 callq 0x8498 38: 84 c0 test %al,%al 3a: 74 1a je 0x56 3c: e8 .byte 0xe8 3d: 77 9e ja 0xffffffdd