Bluetooth: hci6: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci6: Injecting HCI hardware error event Bluetooth: hci6: hardware error 0x00 Bluetooth: hci6: Opcode 0x0c03 failed: -110 watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.7:18397] Modules linked in: irq event stamp: 2174283 hardirqs last enabled at (2174282): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2174283): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2174022): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2174025): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 18397 Comm: syz-executor.7 Not tainted 6.13.0-rc2-next-20241210 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_raw_spin_unlock+0x56/0x220 Code: 03 38 d0 7c 08 84 d2 0f 85 b8 01 00 00 81 7b 04 ad 4e ad de 0f 85 52 01 00 00 be 04 00 00 00 48 89 df e8 7d 3d 5b 00 48 89 da <48> b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 48 89 d8 83 RSP: 0018:ffff88806cf095d8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff88806cf41540 RCX: ffffffff81509663 RDX: ffff88806cf41540 RSI: 0000000000000004 RDI: ffff88806cf41540 RBP: ffff88806cf41540 R08: 0000000000000000 R09: ffffed100d9e82a8 R10: ffff88806cf41543 R11: ffff88806cf43440 R12: ffffea0000ff93c0 R13: ffff88807ffdd000 R14: dffffc0000000000 R15: ffff88806cf41540 FS: 00007f62d833b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020018000 CR3: 00000000407f8000 CR4: 0000000000350ef0 Call Trace: _raw_spin_unlock+0x1e/0x40 get_page_from_freelist+0x50b/0x1fe0 __alloc_frozen_pages_noprof+0x213/0x1f90 alloc_pages_mpol+0xee/0x330 new_slab+0x220/0x2e0 ___slab_alloc+0x89c/0x11d0 kmem_cache_alloc_node_noprof+0x238/0x3e0 __alloc_skb+0x2ad/0x370 __neigh_notify+0x89/0x170 neigh_timer_handler+0x474/0xff0 call_timer_fn+0x198/0x5d0 __run_timers+0x669/0x930 run_timer_softirq+0x117/0x210 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 34 b5 ab ff 4d 85 ed 74 06 e8 7a 7c d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff88803ba676f0 EFLAGS: 00000246 RAX: 000000000020041d RBX: ffffea000034b280 RCX: 1ffffffff0fdfebf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a47276 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fddde1 R10: ffffffff87eeef0f R11: 0000000000000000 R12: ffff88806cf40390 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800d2cacb8 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 alloc_buffer_head+0x24/0x130 folio_alloc_buffers+0x289/0x540 create_empty_buffers+0x30/0x460 ext4_block_write_begin+0x996/0xb20 ext4_da_write_begin+0x30e/0x880 generic_perform_write+0x284/0x7e0 ext4_buffered_write_iter+0x11d/0x3c0 ext4_file_write_iter+0x95e/0x18e0 vfs_write+0xbe2/0x10b0 ksys_write+0x122/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f62dadc5b19 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:00007f62d833b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f62daed8f60 RCX: 00007f62dadc5b19 RDX: 00000000000292e9 RSI: 0000000020000080 RDI: 0000000000000008 RBP: 00007f62dae1ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd9eb34cbf R14: 00007f62d833b300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 03 38 add (%rax),%edi 2: d0 7c 08 84 sarb -0x7c(%rax,%rcx,1) 6: d2 0f rorb %cl,(%rdi) 8: 85 b8 01 00 00 81 test %edi,-0x7effffff(%rax) e: 7b 04 jnp 0x14 10: ad lods %ds:(%rsi),%eax 11: 4e ad rex.WRX lods %ds:(%rsi),%rax 13: de 0f fimuls (%rdi) 15: 85 52 01 test %edx,0x1(%rdx) 18: 00 00 add %al,(%rax) 1a: be 04 00 00 00 mov $0x4,%esi 1f: 48 89 df mov %rbx,%rdi 22: e8 7d 3d 5b 00 callq 0x5b3da4 27: 48 89 da mov %rbx,%rdx * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 c1 ea 03 shr $0x3,%rdx 38: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx 3c: 48 89 d8 mov %rbx,%rax 3f: 83 .byte 0x83