Bluetooth: hci6: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.7:110582] Modules linked in: irq event stamp: 8004959 hardirqs last enabled at (8004958): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (8004959): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (7955016): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (7955019): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 110582 Comm: syz-executor.7 Not tainted 6.5.0-rc7-next-20230822 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_const_cmp2+0x8/0x20 Code: b6 f7 bf 01 00 00 00 e9 86 fe ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <0f> b7 d6 0f b7 f7 bf 03 00 00 00 e9 58 fe ff ff 0f 1f 84 00 00 00 RSP: 0018:ffff88806ce09b88 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff831c8223 RDX: 1ffff11006c456d8 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888036228e20 R08: 0000000000000001 R09: 0000000000000000 R10: ffff88806ce09c50 R11: 0000000000000001 R12: ffff88803622b420 R13: ffff88804baa9000 R14: 000000000013d687 R15: ffff88803622b6b8 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d4aa09018 CR3: 0000000005482000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: mac80211_hwsim_tx_frame_no_nl.isra.0+0x163/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 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:__sanitizer_cov_trace_cmp8+0x4/0x20 Code: 89 fe bf 04 00 00 00 e9 ea fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> 8b 0c 24 48 89 f2 48 89 fe bf 06 00 00 00 e9 b8 fe ff ff 0f 1f RSP: 0018:ffff88803f637580 EFLAGS: 00000246 RAX: ffffffff81835fbe RBX: ffff88803f637608 RCX: 1ffff11007ec6ecc RDX: dffffc0000000000 RSI: ffffffff81835fbe RDI: ffffffff81121b60 RBP: ffffffff8615d9ce R08: ffff88803f637648 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: ffff88803f637960 R14: ffff88803f637958 R15: ffffffff8615d9d2 unwind_next_frame+0xd60/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x8e/0xa0 __call_rcu_common.constprop.0+0x6a/0xbd0 kmem_cache_free+0xc1/0x4d0 remove_vma+0x123/0x170 exit_mmap+0x407/0x9b0 mmput+0xd5/0x390 do_exit+0x99f/0x2740 do_group_exit+0xd4/0x2a0 get_signal+0x2693/0x2720 arch_do_signal_or_restart+0x81/0x790 exit_to_user_mode_prepare+0xeb/0x180 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fdfec560b19 Code: Unable to access opcode bytes at 0x7fdfec560aef. RSP: 002b:00007fdfe9ad6188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000005 RBX: 00007fdfec673f60 RCX: 00007fdfec560b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000580 RBP: 00007fdfec5baf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcaeaf8bdf R14: 00007fdfe9ad6300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 hpet: Lost 4 RTC interrupts netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. ---------------- Code disassembly (best guess): 0: b6 f7 mov $0xf7,%dh 2: bf 01 00 00 00 mov $0x1,%edi 7: e9 86 fe ff ff jmpq 0xfffffe92 c: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: f3 0f 1e fa endbr64 26: 48 8b 0c 24 mov (%rsp),%rcx * 2a: 0f b7 d6 movzwl %si,%edx <-- trapping instruction 2d: 0f b7 f7 movzwl %di,%esi 30: bf 03 00 00 00 mov $0x3,%edi 35: e9 58 fe ff ff jmpq 0xfffffe92 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax)