RBP: 00007f7f56944f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7f56944f8c R13: 0000000000000000 R14: 00007ffd3108da80 R15: 00007ffd3108db68 watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.0.2649:6808] Modules linked in: CPU: 1 PID: 6808 Comm: syz.0.2649 Not tainted 5.15.159-syzkaller-01152-g99ada58989e6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline] RIP: 0010:smp_call_function_many_cond+0x843/0x9b0 kernel/smp.c:969 Code: 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 f6 a8 0a 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 07 e8 31 a5 0a 00 eb 38 f3 90 <42> 0f b6 04 3b 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 15 a5 RSP: 0018:ffffc900010ef360 EFLAGS: 00000293 RAX: ffffffff8165c7eb RBX: 1ffff1103ee07af1 RCX: ffff888143878000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900010ef478 R08: ffffffff8165c7ba R09: ffffed103ee271d3 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff8881f703d788 R14: ffff8881f7138e80 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000006a0f000 CR4: 00000000003506a0 Call Trace: on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1135 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1207 [inline] text_poke_bp_batch+0x1db/0x720 arch/x86/kernel/alternative.c:1407 text_poke_flush arch/x86/kernel/alternative.c:1598 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1605 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459 jump_label_update+0x3af/0x450 kernel/jump_label.c:830 static_key_disable_cpuslocked+0xcd/0x1b0 kernel/jump_label.c:207 static_key_disable+0x1a/0x30 kernel/jump_label.c:215 tracepoint_remove_func kernel/tracepoint.c:417 [inline] tracepoint_probe_unregister+0x60a/0x900 kernel/tracepoint.c:551 bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:1954 bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:2880 bpf_link_free+0x129/0x3f0 kernel/bpf/syscall.c:2451 bpf_link_put kernel/bpf/syscall.c:2477 [inline] bpf_link_release+0x170/0x180 kernel/bpf/syscall.c:2485 __fput+0x3fe/0x910 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xc48/0x2ca0 kernel/exit.c:878 do_group_exit+0x141/0x310 kernel/exit.c:1000 get_signal+0x7a3/0x1630 kernel/signal.c:2896 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f7f5678cef9 Code: Unable to access opcode bytes at RIP 0x7f7f5678cecf. RSP: 002b:00007f7f554060e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f7f56944f88 RCX: 00007f7f5678cef9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7f56944f88 RBP: 00007f7f56944f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7f56944f8c R13: 0000000000000000 R14: 00007ffd3108da80 R15: 00007ffd3108db68 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6815 Comm: syz.3.2652 Not tainted 5.15.159-syzkaller-01152-g99ada58989e6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline] RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline] RIP: 0010:kvm_wait+0x117/0x180 arch/x86/kernel/kvm.c:912 Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d ca ec 12 04 f4 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b RSP: 0000:ffffc90000da6e60 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff920001b4dd0 RCX: ffffffff81552fff RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88811aa99180 RBP: ffffc90000da6f10 R08: dffffc0000000000 R09: ffffed1023553231 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811aa99180 R14: 0000000000000003 R15: 1ffff920001b4dd4 FS: 00007f0fe0ce26c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001063f1000 CR4: 00000000003506b0 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:597 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock_flags include/linux/spinlock.h:199 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 force_sig_info_to_task+0x72/0x440 kernel/signal.c:1336 force_sig_fault_to_task kernel/signal.c:1736 [inline] force_sig_fault+0x127/0x1d0 kernel/signal.c:1742 kernelmode_fixup_or_oops+0x236/0x270 arch/x86/mm/fault.c:743 __bad_area_nosemaphore+0xcf/0x490 arch/x86/mm/fault.c:797 bad_area_nosemaphore+0x2d/0x40 arch/x86/mm/fault.c:846 handle_page_fault arch/x86/mm/fault.c:1540 [inline] exc_page_fault+0x79d/0x830 arch/x86/mm/fault.c:1596 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0010:.E_copy+0x12/0x8f Code: 0a 48 83 e1 f8 48 8b 01 8d 0a 83 e1 07 c1 e1 03 48 d3 e8 e9 85 d5 67 fd 48 89 c8 c3 01 ca e9 ee e8 6a fd c1 e1 06 01 ca eb 07 <8d> 14 ca eb 02 89 ca e9 db e8 6a fd 01 ca e9 d4 e8 6a fd 8d 0c ca RSP: 0000:ffffc90000da7570 EFLAGS: 00050002 RAX: 000000000000000e RBX: ffff88811711c6d0 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000da75e8 RBP: ffffc90000da75a0 R08: 0000000000000005 R09: ffffffff81b93e73 R10: 0000000000000003 R11: ffff88811711bb40 R12: ffffc90000da75e8 R13: 0000000000000008 R14: 0000000000000000 R15: 1ffff11022e238da bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline] ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline] bpf_probe_read_user+0x2a/0x70 kernel/trace/bpf_trace.c:163 bpf_prog_02073d59a3c0f06f+0x3d/0x8a4 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run5+0x172/0x290 kernel/trace/bpf_trace.c:1920 __bpf_trace_signal_generate+0x3c/0x50 include/trace/events/signal.h:50 trace_signal_generate include/trace/events/signal.h:50 [inline] __send_signal+0xc52/0xcb0 kernel/signal.c:1193 send_signal+0x43a/0x590 kernel/signal.c:1254 force_sig_info_to_task+0x2fe/0x440 kernel/signal.c:1356 force_sig_fault_to_task kernel/signal.c:1736 [inline] force_sig_fault+0x127/0x1d0 kernel/signal.c:1742 kernelmode_fixup_or_oops+0x236/0x270 arch/x86/mm/fault.c:743 __bad_area_nosemaphore+0xcf/0x490 arch/x86/mm/fault.c:797 __bad_area arch/x86/mm/fault.c:860 [inline] bad_area+0x73/0x90 arch/x86/mm/fault.c:866 handle_page_fault arch/x86/mm/fault.c:1540 [inline] exc_page_fault+0x58d/0x830 arch/x86/mm/fault.c:1596 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0010:__put_user_nocheck_8+0x11/0x21 Code: 0f 01 ca c3 66 0f 1f 44 00 00 48 bb f9 ef ff ff ff 7f 00 00 48 39 d9 73 14 0f 01 cb 48 89 01 31 c9 0f 01 ca c3 0f 1f 44 00 00 <0f> 01 ca b9 f2 ff ff ff c3 cc cc cc cc cc cc cc 55 48 89 e5 41 57 RSP: 0000:ffffc90000da7c98 EFLAGS: 00050283 RAX: 0000000066e07043 RBX: 00007fffffffeff9 RCX: 0000000000000019 RDX: ffffc90002375000 RSI: 0000000000000ada RDI: 0000000000000adb RBP: ffffc90000da7d60 R08: ffffffff81613ef5 R09: ffffc90000da7ce0 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000da7ce0 R13: dffffc0000000000 R14: 1ffff920001b4f98 R15: 0000000000000019 emulate_vsyscall+0xed6/0x13f0 arch/x86/entry/vsyscall/vsyscall_64.c:247 do_user_addr_fault arch/x86/mm/fault.c:1316 [inline] handle_page_fault arch/x86/mm/fault.c:1540 [inline] exc_page_fault+0x187/0x830 arch/x86/mm/fault.c:1596 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0033:_end+0x77fda000/0x0 Code: Unable to access opcode bytes at RIP 0xffffffffff5fffd6. RSP: 002b:00007f0fe0ce1a78 EFLAGS: 00010246 RAX: ffffffffffffffda RBX: 00007f0fe2220f80 RCX: 00007f0fe2068ef9 RDX: 00007f0fe0ce1a80 RSI: 00007f0fe0ce1bb0 RDI: 0000000000000019 RBP: 00007f0fe20db9f6 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0fe2220f80 R15: 00007ffd2e1b4688