Bluetooth: hci7: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.7:12814] Modules linked in: irq event stamp: 4316607 hardirqs last enabled at (4316606): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (4316607): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (4283842): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (4283845): [] irq_exit_rcu+0x94/0xc0 CPU: 1 UID: 0 PID: 12814 Comm: syz-executor.7 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xa78/0x2490 Code: 89 4c 24 18 48 89 74 24 10 e8 c4 f3 ff ff 4d 8d 4f 40 84 c0 0f 84 9e f8 ff ff 48 8b 74 24 10 48 89 f7 e8 ab eb ff ff 48 89 ef <48> 8b 74 24 10 48 ba 00 00 00 00 00 fc ff df 48 c1 ef 03 48 8b 4c RSP: 0018:ffff88806cf09758 EFLAGS: 00000202 RAX: ffffffff8339d07b RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806cf09b01 RSI: ffff88806cf09b48 RDI: ffff88806cf09820 RBP: ffff88806cf09820 R08: ffffffff86adbbd0 R09: ffff88806cf09808 R10: 000000000003c001 R11: 00000000000953fa R12: ffff88806cf09828 R13: ffff88806cf09810 R14: ffff88806cf09b50 R15: ffff88806cf097c8 FS: 00007fbd7543b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f696ef843a4 CR3: 0000000009e38000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 set_track_prepare+0x36/0x70 __alloc_object+0xf4/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __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+0x2cb/0x5d0 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+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:memset+0x4/0x20 Code: eb 0c 48 83 fa 01 72 06 44 8a 1e 44 88 1f e9 83 29 02 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 2a 49 89 f9 40 88 f0 48 89 d1 f3 aa 4c 89 c8 e9 57 29 02 00 0f RSP: 0018:ffff888039d5f670 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff888039d5f760 RCX: ffffffff8114b35e RDX: 0000000000000070 RSI: 0000000000000000 RDI: ffff888039d5f6c8 RBP: ffff88801941b700 R08: 0000000000000001 R09: ffffed10073abee6 R10: ffff888039d5f737 R11: 00000000000c2f81 R12: 0000000000000000 R13: ffff888039d5f6f0 R14: ffff88801941b700 R15: ffff888039d5f6c8 __unwind_start+0x2e/0x7c0 arch_stack_walk+0x63/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x7f/0x90 kmem_cache_free+0x2cd/0x470 fput+0x376/0x3f0 path_openat+0x1aaa/0x2980 do_filp_open+0x1b8/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbd77e78a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007fbd7543b060 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fbd77fd8f60 RCX: 00007fbd77e78a04 RDX: 0000000000000002 RSI: 00007fbd7543b0f0 RDI: 00000000ffffff9c RBP: 00007fbd7543b0f0 R08: 0000000000000000 R09: 00007fbd7543af70 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007ffd1b4412af R14: 00007fbd7543b300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.12.0-rc3-next-20241016 #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:ffff8880096078a0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff84845a6f RDX: fffffbfff0c1a969 RSI: 0000000000000004 RDI: ffffffff860d4b40 RBP: ffffffff860d4b40 R08: 0000000000000000 R09: fffffbfff0c1a968 R10: ffffffff860d4b43 R11: 5050505000000011 R12: 1ffff110012c0f15 R13: 0000000000000003 R14: fffffbfff0c1a968 R15: ffff8880096078d8 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fad145f7fc8 CR3: 000000000b6c6000 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+0x2cb/0x5d0 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 run_ksoftirqd+0x2e/0x60 smpboot_thread_fn+0x3eb/0x930 kthread+0x2c2/0x3a0 ret_from_fork+0x48/0x80 ret_from_fork_asm+0x1a/0x30 Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: 89 4c 24 18 mov %ecx,0x18(%rsp) 4: 48 89 74 24 10 mov %rsi,0x10(%rsp) 9: e8 c4 f3 ff ff callq 0xfffff3d2 e: 4d 8d 4f 40 lea 0x40(%r15),%r9 12: 84 c0 test %al,%al 14: 0f 84 9e f8 ff ff je 0xfffff8b8 1a: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 1f: 48 89 f7 mov %rsi,%rdi 22: e8 ab eb ff ff callq 0xffffebd2 27: 48 89 ef mov %rbp,%rdi * 2a: 48 8b 74 24 10 mov 0x10(%rsp),%rsi <-- trapping instruction 2f: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 36: fc ff df 39: 48 c1 ef 03 shr $0x3,%rdi 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 4c rex.WR