Bluetooth: hci2: ACL packet for unknown connection handle 0 Bluetooth: hci2: ACL packet for unknown connection handle 0 watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.4:13511] Modules linked in: irq event stamp: 2702395 hardirqs last enabled at (2702394): [<ffffffff8484f79b>] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2702395): [<ffffffff8484e15f>] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2688368): [<ffffffff811a997c>] handle_softirqs+0x50c/0x770 softirqs last disabled at (2688393): [<ffffffff811a9d14>] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 13511 Comm: syz-executor.4 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xac4/0x2490 Code: 85 9a 18 00 00 49 89 47 58 48 3d f0 07 13 81 0f 84 74 0e 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 ee 48 c1 ee 03 80 3c 16 00 <0f> 85 53 15 00 00 4c 89 ea 49 89 47 58 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffff88806ce094c8 EFLAGS: 00000246 RAX: ffffffff8184c6cd RBX: 0000000000000002 RCX: ffffffff8683d8ba RDX: dffffc0000000000 RSI: 1ffff1100d9c12b2 RDI: 1ffff1100d9c12b2 RBP: ffff88806ce09590 R08: ffffffff8683d8be R09: ffff88806ce09578 R10: 000000000003c001 R11: 0000000000023d2f R12: ffff88806ce09598 R13: ffff88806ce09580 R14: ffff88806ce098c0 R15: ffff88806ce09538 FS: 00007fd61aa5a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555562ecec58 CR3: 000000000d1a6000 CR4: 0000000000350ef0 Call Trace: <IRQ> arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 skb_copy+0x1d5/0x3b0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xafb/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa80 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 86 1c a9 fc 48 89 ef e8 5e 8f a9 fc 80 e7 02 74 06 e8 64 ee d2 fc fb 65 ff 0d 44 8c 7c 7b <74> 07 5b 5d e9 93 1e 00 00 0f 1f 44 00 00 5b 5d e9 87 1e 00 00 0f RSP: 0018:ffff88804043f430 EFLAGS: 00000246 RAX: 0000000000290587 RBX: 0000000000000246 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84871a7c RBP: ffff888009400300 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 00000000000007e0 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888008fff500 R15: 0000000000000246 __put_partials+0xc4/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 __proc_create+0x2b7/0x8d0 proc_create_reg+0xb6/0x180 proc_create_net_data+0x90/0x1c0 dev_mc_net_init+0x52/0x80 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8ee0 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd61d4e4b19 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:00007fd61aa5a188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fd61d5f7f60 RCX: 00007fd61d4e4b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007fd61d53ef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd8e721def R14: 00007fd61aa5a300 R15: 0000000000022000 </TASK> Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x242/0xb60 Code: 02 48 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 85 08 00 00 b8 01 00 00 00 66 89 45 00 e9 bf fe ff ff 89 44 24 38 f3 90 <e9> 5b fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 RSP: 0018:ffff88806cf099e0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff848722cf RDX: fffffbfff0c1b789 RSI: 0000000000000004 RDI: ffffffff860dbc40 RBP: ffffffff860dbc40 R08: 0000000000000000 R09: fffffbfff0c1b788 R10: ffffffff860dbc43 R11: 5050505001000011 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b788 R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f926cb60430 CR3: 0000000007122000 CR4: 0000000000350ef0 Call Trace: <NMI> </NMI> <IRQ> do_raw_spin_lock+0x1de/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6d1/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa80 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d d9 80 3d 00 0f 1f 44 00 00 fb f4 <fa> e9 6c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096cfe68 EFLAGS: 00000206 RAX: 00000000000ca281 RBX: 0000000000000001 RCX: ffffffff8484fb07 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b110a RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863f9f10 R13: 1ffff110012d9fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 </TASK> ---------------- Code disassembly (best guess): 0: 85 9a 18 00 00 49 test %ebx,0x49000018(%rdx) 6: 89 47 58 mov %eax,0x58(%rdi) 9: 48 3d f0 07 13 81 cmp $0xffffffff811307f0,%rax f: 0f 84 74 0e 00 00 je 0xe89 15: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 1c: fc ff df 1f: 48 89 ee mov %rbp,%rsi 22: 48 c1 ee 03 shr $0x3,%rsi 26: 80 3c 16 00 cmpb $0x0,(%rsi,%rdx,1) * 2a: 0f 85 53 15 00 00 jne 0x1583 <-- trapping instruction 30: 4c 89 ea mov %r13,%rdx 33: 49 89 47 58 mov %rax,0x58(%r15) 37: 48 rex.W 38: b8 00 00 00 00 mov $0x0,%eax 3d: 00 fc add %bh,%ah 3f: ff .byte 0xff