Bluetooth: hci7: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.4:7669] Modules linked in: irq event stamp: 6131511 hardirqs last enabled at (6131510): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6131511): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6097168): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (6097171): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 7669 Comm: syz-executor.4 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x348/0x2130 Code: 8e c7 15 00 00 41 c6 46 40 01 49 c7 c0 00 4b 4c 85 48 b8 00 00 00 00 00 fc ff df 4d 8d 48 04 4c 89 ca 48 c1 ea 03 0f b6 04 02 <4c> 89 ca 83 e2 07 38 d0 7f 08 84 c0 0f 85 e4 14 00 00 41 0f b6 40 RSP: 0018:ffff88806ce095b0 EFLAGS: 00000217 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff816907f2 RDX: 1ffffffff0c1b4ff RSI: ffffffff860da79a RDI: ffffffff85db15d4 RBP: ffff88806ce09688 R08: ffffffff860da7fa R09: ffffffff860da7fe R10: ffffed100d9c12d3 R11: 0000000000038001 R12: ffff88806ce09671 R13: ffff88806ce09690 R14: ffff88806ce09630 R15: ffffffff816907f2 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fac2e4d96f0 CR3: 00000000197de000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e1/0x410 __create_object+0x3d/0xc40 __kmem_cache_alloc_node+0x25b/0x400 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__schedule+0x93f/0x25d0 Code: 00 4d 89 7c 24 10 4c 89 ef 4c 89 fe e8 ba 17 c1 fc 48 89 c7 e8 12 c3 e2 fc 48 b8 00 00 00 00 00 fc ff df 48 03 85 f8 fe ff ff <48> c7 00 00 00 00 00 48 c7 40 08 00 00 00 00 48 8b 45 d0 65 48 2b RSP: 0018:ffff888048e2f5b0 EFLAGS: 00000282 RAX: ffffed10091c5ebf RBX: ffff88806ce39298 RCX: ffffffff812b3b2f RDX: 1ffff1100906127d RSI: 0000000000000001 RDI: ffff8880483093e8 RBP: ffff888048e2f6c0 R08: 0000000000000001 R09: ffffffff876328ef R10: fffffbfff0ec651d R11: 0000000000000001 R12: ffff88806ce39280 R13: ffff888048308000 R14: ffff888016f19100 R15: ffff88801a0ed040 preempt_schedule_common+0x45/0xc0 __cond_resched+0x1b/0x30 unmap_page_range+0xd7d/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2760 do_group_exit+0xd4/0x2a0 get_signal+0x21b7/0x22f0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fd91ddc8b19 Code: Unable to access opcode bytes at 0x7fd91ddc8aef. RSP: 002b:00007fd91b33e218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd91dedbf68 RCX: 00007fd91ddc8b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd91dedbf68 RBP: 00007fd91dedbf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd91dedbf6c R13: 00007ffd39accd5f R14: 00007fd91b33e300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7675 Comm: syz-executor.3 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 de 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8440b92b RDX: fffffbfff0b48571 RSI: 0000000000000004 RDI: ffffffff85a42b80 RBP: ffffffff85a42b80 R08: 0000000000000000 R09: ffffffff85a42b83 R10: fffffbfff0b48570 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48570 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005609ab7fcff0 CR3: 000000000e496000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:percpu_counter_add_batch+0x144/0x1a0 Code: 01 30 e8 7f 4c 21 02 e8 0a 7b 29 ff 31 ff 48 89 de e8 60 77 29 ff 48 85 db 74 0b e8 f6 7a 29 ff e8 b1 8e 30 ff fb 48 83 c4 18 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 dd 7a 29 ff e8 d8 7a 29 ff 65 45 RSP: 0018:ffff88800a2076c8 EFLAGS: 00000282 RAX: 000000000041ce8d RBX: 0000000000000200 RCX: ffffffff812b3b2f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000020 R08: 0000000000000001 R09: ffffffff876328c7 R10: fffffbfff0ec6518 R11: 0000000000000001 R12: ffff888016f1ea20 R13: ffffffffffffff70 R14: 0000000000000000 R15: 0000607f92e00cf0 unmap_page_range+0xdff/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2760 do_group_exit+0xd4/0x2a0 get_signal+0x21b7/0x22f0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f5422204b19 Code: Unable to access opcode bytes at 0x7f5422204aef. RSP: 002b:00007f541f77a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: 0000000000002000 RBX: 00007f5422317f60 RCX: 00007f5422204b19 RDX: 00000000000292e9 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007f542225ef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe84d9e79f R14: 00007f541f77a300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: 00 00 add %al,(%rax) 2: 41 c6 46 40 01 movb $0x1,0x40(%r14) 7: 49 c7 c0 00 4b 4c 85 mov $0xffffffff854c4b00,%r8 e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 4d 8d 48 04 lea 0x4(%r8),%r9 1c: 4c 89 ca mov %r9,%rdx 1f: 48 c1 ea 03 shr $0x3,%rdx 23: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax * 27: 4c 89 ca mov %r9,%rdx <-- trapping instruction 2a: 83 e2 07 and $0x7,%edx 2d: 38 d0 cmp %dl,%al 2f: 7f 08 jg 0x39 31: 84 c0 test %al,%al 33: 0f 85 e4 14 00 00 jne 0x151d 39: 41 rex.B 3a: 0f .byte 0xf 3b: b6 40 mov $0x40,%dh