RBP: 00007fe050611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fe0507e6128 R14: 00007fe0507e6090 R15: 00007ffea12a3d38
 </TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.1.341:1682]
Modules linked in:
CPU: 1 PID: 1682 Comm: syz.1.341 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline]
RIP: 0010:smp_call_function_many_cond+0x878/0x960 kernel/smp.c:998
Code: e6 01 31 ff e8 29 66 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 f5 61 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 d2 61 09 00
RSP: 0018:ffffc9000079f740 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc90002e50000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000079f880 R08: dffffc0000000000 R09: ffffed1021e012e5
R10: ffffed1021e012e5 R11: 1ffff11021e012e4 R12: 1ffff1103ee27218
R13: 1ffff1103ee07ae1 R14: 0000000000000000 R15: ffff8881f703d708
FS:  00007fe0513826c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe051381f98 CR3: 00000001345ea000 CR4: 00000000003506a0
DR0: 00000000000000fd DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x43/0x80 kernel/smp.c:1166
 native_flush_tlb_multi+0x144/0x210 arch/x86/mm/tlb.c:-1
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:87 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:970 [inline]
 flush_tlb_mm_range+0x36a/0x470 arch/x86/mm/tlb.c:1058
 dup_mmap kernel/fork.c:805 [inline]
 dup_mm kernel/fork.c:1644 [inline]
 copy_mm+0x13f0/0x1a10 kernel/fork.c:1696
 copy_process+0x12b4/0x3480 kernel/fork.c:2459
 kernel_clone+0x23a/0x810 kernel/fork.c:2874
 __do_sys_clone kernel/fork.c:3017 [inline]
 __se_sys_clone kernel/fork.c:3001 [inline]
 __x64_sys_clone+0x168/0x1b0 kernel/fork.c:3001
 x64_sys_call+0x990/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe05058efc9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe051381fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fe0507e6090 RCX: 00007fe05058efc9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000400
RBP: 00007fe050611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fe0507e6128 R14: 00007fe0507e6090 R15: 00007ffea12a3d38
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1681 Comm: syz.1.341 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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+0xcc/0x140 arch/x86/kernel/kvm.c:1058
Code: 20 f6 44 24 21 02 75 24 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 48 0f b6 07 40 38 f0 75 a6 66 90 0f 00 2d 45 96 13 04 f4 <eb> 9a fa 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3f 0f b6 07
RSP: 0018:ffffc9000109f1e0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff8881313ab940 RCX: ffffffff84f43dc2
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff8881313ab940
RBP: ffffc9000109f270 R08: dffffc0000000000 R09: ffffed1026275729
R10: ffffed1026275729 R11: 1ffff11026275728 R12: 1ffff1103ee00001
R13: ffff8881f7038cf4 R14: dffffc0000000000 R15: 1ffff92000213e3c
FS:  00007fe0513a36c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001345ea000 CR4: 00000000003506b0
DR0: 00000000000000fd DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x690/0xc40 kernel/locking/qspinlock.c:511
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:162
 queue_stack_map_push_elem+0x14d/0x530 kernel/bpf/queue_stack_maps.c:214
 bpf_prog_228e6f3dfd1f515c+0x3d/0x41
 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline]
 __bpf_prog_run include/linux/filter.h:596 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2283 [inline]
 bpf_trace_run2+0x1a7/0x250 kernel/trace/bpf_trace.c:2322
 __bpf_trace_contention_end+0xb/0x10 include/trace/events/lock.h:122
 trace_contention_end include/trace/events/lock.h:122 [inline]
 __pv_queued_spin_lock_slowpath+0xbff/0xc40 kernel/locking/qspinlock.c:560
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:162
 queue_stack_map_push_elem+0x14d/0x530 kernel/bpf/queue_stack_maps.c:214
 bpf_prog_228e6f3dfd1f515c+0x3d/0x41
 bpf_dispatcher_xdp_func+0x25/0x30 net/core/filter.c:11569
 __bpf_prog_run include/linux/filter.h:596 [inline]
 bpf_prog_run_xdp include/linux/filter.h:785 [inline]
 bpf_test_run+0x602/0x8d0 net/bpf/test_run.c:400
 bpf_prog_test_run_xdp+0x6c8/0xe50 net/bpf/test_run.c:1392
 bpf_prog_test_run+0x3e3/0x630 kernel/bpf/syscall.c:3665
 __sys_bpf+0x56d/0x780 kernel/bpf/syscall.c:5020
 __do_sys_bpf kernel/bpf/syscall.c:5106 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5104 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5104
 x64_sys_call+0x488/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe05058efc9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe0513a3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fe0507e5fa0 RCX: 00007fe05058efc9
RDX: 0000000000000050 RSI: 00002000000003c0 RDI: 000000000000000a
RBP: 00007fe050611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe0507e6038 R14: 00007fe0507e5fa0 R15: 00007ffea12a3d38
 </TASK>