Bluetooth: hci2: command 0x0c1a tx timeout Bluetooth: hci3: command 0x0c1a tx timeout Bluetooth: hci7: command 0x0c1a tx timeout Bluetooth: hci5: command 0x0c1a tx timeout Bluetooth: hci6: command 0x0c1a tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.4:4323] Modules linked in: irq event stamp: 8768113 hardirqs last enabled at (8768112): [] irqentry_exit+0x1bf/0x760 hardirqs last disabled at (8768113): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (8728208): [] __irq_exit_rcu+0x137/0x1c0 softirqs last disabled at (8728211): [] __irq_exit_rcu+0x137/0x1c0 CPU: 0 UID: 0 PID: 4323 Comm: syz-executor.4 Tainted: G W 7.1.0-rc5-next-20260526 #1 PREEMPT(lazy) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rcu_read_unlock+0xc6/0x5c0 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e d1 01 00 00 8b 85 80 04 00 00 85 c0 75 57 <65> 48 8b 1d 7a d3 7a 06 48 8d bb 7c 04 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff88806cc08980 EFLAGS: 00000206 RAX: 000000000085ca6a RBX: ffff88806cc38a40 RCX: 0000000000000008 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff815e5e28 RBP: ffffffff86033500 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff868a1a97 R11: 00000000000080e7 R12: ffff8880194dd580 R13: ffff88806cc08a00 R14: 0000000000000200 R15: ffff88806cc08a20 FS: 00007f91ca0da700(0000) GS:ffff8880e4e8d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cd2b000 CR3: 000000000ea01000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0x3bc/0x2790 arch_stack_walk+0x86/0xf0 stack_trace_save+0x8e/0xc0 kasan_save_stack+0x24/0x50 kasan_record_aux_stack+0x89/0xa0 __call_rcu_common.constprop.0+0x70/0x9d0 __rcu_free_sheaf_prepare+0x166/0x2c0 rcu_free_sheaf+0x1b/0xf0 rcu_core+0x5d7/0x1470 handle_softirqs+0x1b1/0x8e0 __irq_exit_rcu+0x137/0x1c0 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:preempt_schedule_irq+0x49/0x90 Code: 00 fc ff df 55 65 48 8b 2d 0c 0e f2 02 53 48 89 eb 48 c1 eb 03 48 01 c3 65 ff 05 12 0e f2 02 e8 7d 1b 99 fc fb bf 01 00 00 00 52 ac ff ff 9c 58 fa f6 c4 02 75 1b 65 ff 0d f3 0d f2 02 80 3b RSP: 0018:ffff88804b35f328 EFLAGS: 00000202 RAX: 00000000003a1e4f RBX: ffffed100329bab0 RCX: 0000000000000080 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff8880194dd580 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff868a1a97 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 irqentry_exit+0x205/0x760 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 f6 5a 6b fc 48 89 ef e8 be ab 6b fc 80 e7 02 74 06 e8 74 65 97 fc fb 65 ff 0d fc 57 f0 02 <74> 07 5b 5d e9 c3 23 00 00 e8 de c0 37 fc 5b 5d e9 b7 23 00 00 0f RSP: 0018:ffff88804b35f440 EFLAGS: 00000286 RAX: 00000000003a113d RBX: 0000000000000286 RCX: 0000000000000080 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84e8d82c RBP: ffffffff86115e60 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff868a1a97 R11: 0000000000000000 R12: ffff88801748ee40 R13: 0000000000000cc0 R14: 0000000000000cc0 R15: 0000000000000040 kasan_quarantine_reduce+0x195/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x1ee/0x650 ptlock_alloc+0x21/0x70 pte_alloc_one+0x86/0x390 __pte_alloc+0x6c/0x380 copy_page_range+0x2eb3/0x5580 dup_mmap+0xcf2/0x1f40 copy_process+0x3dd6/0x7940 kernel_clone+0x1fd/0x870 __do_sys_fork+0x94/0xd0 do_syscall_64+0x113/0x6a0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f91ccb64b19 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:00007f91ca0da188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f91ccc77f60 RCX: 00007f91ccb64b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f91ccbbef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6344ea7f R14: 00007f91ca0da300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G W 7.1.0-rc5-next-20260526 #1 PREEMPT(lazy) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:error_return+0x3/0x20 Code: e8 f2 e1 e8 03 eb 0c cc cc cc cc cc cc cc cc cc cc cc cc 48 8d 7c 24 08 e8 0a b3 e5 03 48 89 c7 e9 a2 b2 e5 03 66 90 50 9c 58 00 02 00 00 74 02 0f 0b 58 f6 84 24 88 00 00 00 03 0f 84 31 fc RSP: 0018:ffff88800a76fda0 EFLAGS: 00000006 RAX: 0000000000000006 RBX: 0000000000000000 RCX: ffffffff84e62926 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8100148a RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9a641a R10: ffff88806cd320d3 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880e4f8d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c010c61000 CR3: 000000001c222000 CR4: 0000000000350ef0 Call Trace: RIP: 0010:pv_native_safe_halt+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 c9 af 1f 00 0f 1f 44 00 00 fb f4 5d eb 02 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 RSP: 0018:ffff88800a76fe58 EFLAGS: 00000202 RAX: 0000000000212e85 RBX: 0000000000000001 RCX: ffffffff84e627a7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff814e517b RBP: 0000000000000001 R08: 0000000000000001 R09: ffffed100d9a641a R10: ffff88806cd320d3 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff868a1a90 R14: 0000000000000000 R15: 0000000000000000 default_idle+0xe/0x20 default_idle_call+0x6c/0xb0 do_idle+0x42b/0x550 cpu_startup_entry+0x4f/0x60 start_secondary+0x1bd/0x210 common_startup_64+0x13e/0x158 ---------------- Code disassembly (best guess): 0: b8 00 00 00 00 mov $0x0,%eax 5: 00 fc add %bh,%ah 7: ff (bad) 8: df 48 89 fisttps -0x77(%rax) b: fa cli c: 48 c1 ea 03 shr $0x3,%rdx 10: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 14: 84 c0 test %al,%al 16: 74 08 je 0x20 18: 3c 03 cmp $0x3,%al 1a: 0f 8e d1 01 00 00 jle 0x1f1 20: 8b 85 80 04 00 00 mov 0x480(%rbp),%eax 26: 85 c0 test %eax,%eax 28: 75 57 jne 0x81 * 2a: 65 48 8b 1d 7a d3 7a mov %gs:0x67ad37a(%rip),%rbx # 0x67ad3ac <-- trapping instruction 31: 06 32: 48 8d bb 7c 04 00 00 lea 0x47c(%rbx),%rdi 39: 48 rex.W 3a: b8 00 00 00 00 mov $0x0,%eax