Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci3: command tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:7472] Modules linked in: irq event stamp: 2524509 hardirqs last enabled at (2524508): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2524509): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2502062): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2502065): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 7472 Comm: syz-executor.1 Not tainted 6.12.0-next-20241119 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x5c/0x2490 Code: ef 09 00 00 41 8b 1f 31 c0 85 db 0f 84 1e 03 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 6f 58 48 89 ea 48 c1 ea 03 80 3c 02 00 <0f> 85 07 1a 00 00 49 8b 47 58 4d 8d 6f 48 4c 89 ea 48 89 04 24 48 RSP: 0018:ffff88806ce09588 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000002 RCX: ffff88806ce096e8 RDX: 1ffff1100d9c12d4 RSI: 1ffff1100d9c12cb RDI: ffff88806ce09648 RBP: ffff88806ce096a0 R08: 0000000000000000 R09: 0000000000000000 R10: ffff88806ce09648 R11: 00000000ffffffff R12: ffffed100d9c12cb R13: ffffed100d9c12ca R14: ffff88806ce09690 R15: ffff88806ce09648 FS: 00007ff724161700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de2e000 CR3: 000000000b794000 CR4: 0000000000350ef0 Call Trace: __unwind_start+0x517/0x7c0 arch_stack_walk+0x63/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node_noprof+0x14c/0x3e0 __alloc_skb+0x2ad/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/0xa70 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__slab_free+0x7f/0x310 Code: c1 e8 1f 4d 85 ed 66 89 5c 24 58 41 89 c6 41 0f 94 c2 66 85 db 74 05 45 84 d2 74 05 45 84 f6 74 42 41 8b 7f 08 4c 8b 4c 24 58 <4c> 89 ea 4c 89 e6 4c 8b 44 24 20 e8 91 a0 ff ff 84 c0 74 9d 4c 89 RSP: 0018:ffff8880166f7ac0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00000000000d000c RCX: 00000000000d000d RDX: ffff8880132e7a68 RSI: ffffea00004cb9c0 RDI: 0000000000089800 RBP: ffff8880166f7b60 R08: 0000000000000001 R09: 00000000000d000c R10: ffffea00004cb901 R11: 00000000000007e0 R12: ffffea00004cb9c0 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888008c4f780 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 __kmalloc_node_noprof+0x36c/0x4a0 __kvmalloc_node_noprof+0x178/0x200 io_uring_setup+0x8d3/0x31d0 __x64_sys_io_uring_setup+0x99/0x160 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff726bebb19 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:00007ff724161108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 00007ff726cfef60 RCX: 00007ff726bebb19 RDX: 0000000020ffa000 RSI: 0000000020000100 RDI: 000000000000117c RBP: 0000000020000100 R08: 00000000200001c0 R09: 00000000200001c0 R10: 0000000020000180 R11: 0000000000000202 R12: 00000000200001c0 R13: 0000000020ffa000 R14: 0000000020000180 R15: 0000000020ffa000 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-20241119 #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 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: ffffffff8486e2bf RDX: fffffbfff0c1b61d RSI: 0000000000000004 RDI: ffffffff860db0e0 RBP: ffffffff860db0e0 R08: 0000000000000000 R09: fffffbfff0c1b61c R10: ffffffff860db0e3 R11: 5050505000000011 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b61c R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f371e4a8140 CR3: 000000000ccee000 CR4: 0000000000350ef0 Call Trace: 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/0xa70 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 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 e9 bf 3d 00 0f 1f 44 00 00 fb f4 e9 7c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096cfe68 EFLAGS: 00000202 RAX: 00000000000ab4fd RBX: 0000000000000001 RCX: ffffffff8484baf7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b109a RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863f9310 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 Bluetooth: hci4: command tx timeout Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci4: command tx timeout Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci0: command tx timeout Bluetooth: hci4: command tx timeout Bluetooth: hci5: command tx timeout Bluetooth: hci6: command tx timeout Bluetooth: hci0: command tx timeout Bluetooth: hci4: command tx timeout Bluetooth: hci5: command tx timeout Bluetooth: hci6: command tx timeout Bluetooth: hci0: command tx timeout Bluetooth: hci5: command tx timeout ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 00 00 add %al,(%rax) 2: 41 8b 1f mov (%r15),%ebx 5: 31 c0 xor %eax,%eax 7: 85 db test %ebx,%ebx 9: 0f 84 1e 03 00 00 je 0x32d f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 16: fc ff df 19: 49 8d 6f 58 lea 0x58(%r15),%rbp 1d: 48 89 ea mov %rbp,%rdx 20: 48 c1 ea 03 shr $0x3,%rdx 24: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 28: 0f 85 07 1a 00 00 jne 0x1a35 <-- trapping instruction 2e: 49 8b 47 58 mov 0x58(%r15),%rax 32: 4d 8d 6f 48 lea 0x48(%r15),%r13 36: 4c 89 ea mov %r13,%rdx 39: 48 89 04 24 mov %rax,(%rsp) 3d: 48 rex.W