capability: warning: `syz-executor.4' uses 32-bit capabilities (legacy support in use) Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (1004 ticks this GP) idle=3c9c/1/0x4000000000000000 softirq=173077/173077 fqs=39862 rcu: (detected by 1, t=105002 jiffies, g=154429, q=28380 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4302 Comm: syz-executor.2 Not tainted 6.5.0-rc4-next-20230804 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__lock_acquire+0x5bc/0x6340 Code: eb 12 41 83 ed 01 49 83 ef 28 41 83 fd ff 0f 84 71 0b 00 00 4c 89 f8 4c 89 fa 49 8d 5f df 48 c1 e8 03 83 e2 07 42 0f b6 04 00 <38> d0 7f 08 84 c0 0f 85 e8 32 00 00 0f b6 43 21 31 f0 a8 60 74 c2 RSP: 0018:ffff88806ce093d0 EFLAGS: 00000002 RAX: 0000000000000000 RBX: ffff88801de6a5a8 RCX: ffffffff812d83be RDX: 0000000000000001 RSI: 0000000000000020 RDI: ffffffff87740369 RBP: ffff88801de69b40 R08: dffffc0000000000 R09: fffffbfff0ee7d60 R10: ffffffff8773eb07 R11: 0000000000000001 R12: ffff88801de6a5d0 R13: 0000000000000003 R14: 0000000000000004 R15: ffff88801de6a5c9 FS: 00007fb8aa880700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f86a08c6000 CR3: 00000000189fc000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x19a/0x4c0 perf_output_begin_forward+0xbe/0xbd0 perf_event_output_forward+0x1c4/0x3c0 __perf_event_overflow+0x4c2/0x9e0 perf_swevent_event+0x2c6/0x3f0 perf_tp_event+0x2dd/0x1280 perf_trace_run_bpf_submit+0xf3/0x190 perf_trace_preemptirq_template+0x252/0x420 trace_hardirqs_on+0xce/0x100 asm_sysvec_irq_work+0x1a/0x20 RIP: 0010:__rcu_read_unlock+0xc8/0x4f0 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 76 01 00 00 8b 85 f8 03 00 00 85 c0 75 58 <65> 48 8b 1c 25 40 8d 03 00 48 8d bb f4 03 00 00 48 b8 00 00 00 00 RSP: 0018:ffff88806ce09db8 EFLAGS: 00000216 RAX: 0000000000019800 RBX: ffff88806ce3a540 RCX: ffffffff812d4bbf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8137c051 RBP: ffffffff85617500 R08: 0000000000000001 R09: fffffbfff0ee7d76 R10: ffffffff8773ebb7 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff831d0e00 R14: 0000000000000200 R15: dffffc0000000000 ieee80211_iterate_active_interfaces_atomic+0x95/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:generic_exec_single+0x90/0x540 Code: f6 14 93 04 0f 92 c3 31 ff 89 de e8 5a e5 0a 00 84 db 0f 84 f4 03 00 00 e8 0d ea 0a 00 4c 89 e6 89 ef 45 31 e4 e8 10 fb ff ff fb e9 0a 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e e9 ab fc 1a 03 e8 RSP: 0018:ffff8880377afb10 EFLAGS: 00000206 RAX: 000000000000009f RBX: 0000000000000200 RCX: ffffffff812d4bbf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8141d6c7 RBP: 0000000000000001 R08: 0000000000000001 R09: fffffbfff0ee7d76 R10: ffffffff8773ebb7 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880377afc38 R14: ffff8880377afb88 R15: ffff88801de69b54 smp_call_function_single+0x327/0x410 task_function_call+0xe5/0x180 perf_install_in_context+0x2cb/0x570 __do_sys_perf_event_open+0x1903/0x2ae0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fb8ad30ab19 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:00007fb8aa880188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fb8ad41df60 RCX: 00007fb8ad30ab19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000580 RBP: 00007fb8ad364f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffcd35541f R14: 00007fb8aa880300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: eb 12 jmp 0x14 2: 41 83 ed 01 sub $0x1,%r13d 6: 49 83 ef 28 sub $0x28,%r15 a: 41 83 fd ff cmp $0xffffffff,%r13d e: 0f 84 71 0b 00 00 je 0xb85 14: 4c 89 f8 mov %r15,%rax 17: 4c 89 fa mov %r15,%rdx 1a: 49 8d 5f df lea -0x21(%r15),%rbx 1e: 48 c1 e8 03 shr $0x3,%rax 22: 83 e2 07 and $0x7,%edx 25: 42 0f b6 04 00 movzbl (%rax,%r8,1),%eax * 2a: 38 d0 cmp %dl,%al <-- trapping instruction 2c: 7f 08 jg 0x36 2e: 84 c0 test %al,%al 30: 0f 85 e8 32 00 00 jne 0x331e 36: 0f b6 43 21 movzbl 0x21(%rbx),%eax 3a: 31 f0 xor %esi,%eax 3c: a8 60 test $0x60,%al 3e: 74 c2 je 0x2