watchdog: BUG: soft lockup - CPU#0 stuck for 141s! [syz-executor.0:16620] Modules linked in: irq event stamp: 25424569 hardirqs last enabled at (25424568): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 hardirqs last disabled at (25424569): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (25422362): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (25422362): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 softirqs last disabled at (25422369): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (25422369): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 CPU: 0 PID: 16620 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ktime_get_with_offset+0x3b/0x500 kernel/time/timekeeping.c:864 Code: cb 00 10 00 83 fd 02 0f 87 aa 04 00 00 48 8d 3c ed 00 f2 8d 89 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 af 04 00 00 8b 1d 65 9b 08 0c 31 ff 4c 8b 34 ed 00 f2 8d 89 RSP: 0018:ffffc90000007cd8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88809b110da0 RCX: 0000000000000100 RDX: 1ffffffff131be40 RSI: ffffffff8166fc55 RDI: ffffffff898df200 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8538d260 R11: 0000000000000000 R12: ffff88809e9da070 R13: ffff88809b1132e0 R14: ffff88809b115e78 R15: ffff88803907fc50 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c01219ee60 CR3: 000000001aac6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ktime_get_real include/linux/timekeeping.h:79 [inline] mac80211_hwsim_get_tsf_raw drivers/net/wireless/mac80211_hwsim.c:977 [inline] mac80211_hwsim_beacon_tx+0x2e6/0x930 drivers/net/wireless/mac80211_hwsim.c:1823 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:qlist_free_all+0x67/0x110 mm/kasan/quarantine.c:160 Code: 35 bd 81 48 c1 e8 03 42 c6 04 28 fb e8 f2 7a ff ff 48 85 db 75 52 9c 58 f6 c4 02 0f 85 a4 00 00 00 48 85 db 74 01 fb 48 85 ed <74> 73 48 89 ee 4d 85 e4 4c 89 e7 74 38 48 63 87 80 00 00 00 48 8b RSP: 0018:ffffc90006507688 EFLAGS: 00000286 RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1fb3b56 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88808120fc00 R08: 0000000000000001 R09: ffffffff8fd4cad7 R10: 0000000000000001 R11: 000000000000003f R12: 0000000000000000 R13: dffffc0000000000 R14: ffffc900065076d0 R15: ffffea0000000000 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 ____kasan_kmalloc mm/kasan/common.c:479 [inline] __kasan_kmalloc+0xba/0xd0 mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:269 [inline] __do_kmalloc mm/slab.c:3702 [inline] __kmalloc+0x209/0x4d0 mm/slab.c:3711 kmalloc include/linux/slab.h:595 [inline] kzalloc include/linux/slab.h:724 [inline] kobject_get_path+0x3e/0x70 lib/kobject.c:179 kobject_uevent_env+0x265/0x1650 lib/kobject_uevent.c:529 device_del+0x809/0xd60 drivers/base/core.c:3591 hci_conn_del_sysfs+0xdc/0x180 net/bluetooth/hci_sysfs.c:78 hci_conn_cleanup+0x2e7/0x6c0 net/bluetooth/hci_conn.c:138 hci_conn_del+0x2a0/0x790 net/bluetooth/hci_conn.c:806 hci_conn_hash_flush+0x19c/0x260 net/bluetooth/hci_conn.c:1743 hci_dev_do_close+0x57d/0x1150 net/bluetooth/hci_core.c:1672 hci_unregister_dev+0x1c8/0x5b0 net/bluetooth/hci_core.c:3915 vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:462 __fput+0x286/0x9f0 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xc14/0x2b40 kernel/exit.c:832 do_group_exit+0x125/0x310 kernel/exit.c:929 get_signal+0x47d/0x21d0 kernel/signal.c:2820 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f8ae9d53a04 Code: Unable to access opcode bytes at RIP 0x7f8ae9d539da. RSP: 002b:00007f8ae7315cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: 0000000000000006 RBX: 6666666666666667 RCX: 00007f8ae9d53a04 RDX: 0000000000000000 RSI: 00007f8ae7315d60 RDI: 00000000ffffff9c RBP: 00007f8ae7315d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffcd0f4b58f R14: 00007f8ae7316300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:553 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 00 adc %al,(%rax) 2: 83 fd 02 cmp $0x2,%ebp 5: 0f 87 aa 04 00 00 ja 0x4b5 b: 48 8d 3c ed 00 f2 8d lea -0x76720e00(,%rbp,8),%rdi 12: 89 13: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1a: fc ff df 1d: 48 89 fa mov %rdi,%rdx 20: 48 c1 ea 03 shr $0x3,%rdx 24: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 28: 0f 85 af 04 00 00 jne 0x4dd <-- trapping instruction 2e: 8b 1d 65 9b 08 0c mov 0xc089b65(%rip),%ebx # 0xc089b99 34: 31 ff xor %edi,%edi 36: 4c 8b 34 ed 00 f2 8d mov -0x76720e00(,%rbp,8),%r14 3d: 89