watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.2.584:8054]
Modules linked in:
irq event stamp: 258518
hardirqs last  enabled at (258517): [<ffffffff8b7b0234>] irqentry_exit+0x74/0x90
hardirqs last disabled at (258518): [<ffffffff8b7aee6e>] sysvec_apic_timer_interrupt+0xe/0xc0
softirqs last  enabled at (258516): [<ffffffff8185070a>] __irq_exit_rcu+0xca/0x1f0
softirqs last disabled at (258477): [<ffffffff8185070a>] __irq_exit_rcu+0xca/0x1f0
CPU: 1 UID: 0 PID: 8054 Comm: syz.2.584 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x70
Code: 24 65 48 8b 0c 25 08 e0 a0 92 65 8b 15 b8 1e e1 10 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 3c 16 00 00 00 74 2c <8b> 91 18 16 00 00 83 fa 02 75 21 48 8b 91 20 16 00 00 48 8b 32 48
RSP: 0018:ffffc9000a90f338 EFLAGS: 00000246
RAX: ffffffff81b4621b RBX: 1ffff11009608341 RCX: ffff888030249cc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000a90f4c0 R08: ffffffff8fa3b437 R09: 1ffffffff1f47686
R10: dffffc0000000000 R11: fffffbfff1f47687 R12: ffff88804b041a08
R13: dffffc0000000000 R14: ffff88813663b1c0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881a3c12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f07c08adfc8 CR3: 000000000df36000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 smp_call_function_many_cond+0xd4b/0x12d0
 on_each_cpu_cond_mask+0x3f/0x80
 flush_tlb_mm_range+0x6b1/0x12d0
 tlb_flush_mmu+0x1a7/0x680
 tlb_finish_mmu+0xc3/0x1d0
 free_ldt_pgtables+0x17b/0x320
 exit_mmap+0x17c/0xb50
 __mmput+0x118/0x430
 exit_mm+0x1da/0x2c0
 do_exit+0x648/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e2d98ec29
Code: Unable to access opcode bytes at 0x7f0e2d98ebff.
RSP: 002b:00007f0e2bbf60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f0e2dbd6098 RCX: 00007f0e2d98ec29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0e2dbd6098
RBP: 00007f0e2dbd6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0e2dbd6128 R14: 00007ffd99cd6d00 R15: 00007ffd99cd6de8
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8076 Comm: syz.1.594 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:validate_chain+0x11/0x2140
Code: 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 55 41 57 41 56 41 55 41 54 53 48 81 ec e0 00 00 00 <49> 89 cf 65 48 8b 05 04 2a 03 11 48 89 84 24 d8 00 00 00 8b 46 20
RSP: 0018:ffffc90000007638 EFLAGS: 00000082
RAX: ffffffff9349f388 RBX: 0000000000000000 RCX: d6bf87c490213bdc
RDX: 0000000000000001 RSI: ffff888020c5e130 RDI: ffff888020c5d640
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff81ada78b
R10: dffffc0000000000 R11: ffffed1009604f51 R12: 0000000000000068
R13: ffff888020c5e130 R14: ffff888020c5e130 R15: d6bf87c490213bdc
FS:  00007f07c08ae6c0(0000) GS:ffff8880b8612000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002100 CR3: 000000010f546000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __lock_acquire+0xab9/0xd20
 lock_acquire+0x120/0x360
 _raw_spin_lock_irqsave+0xa7/0xf0
 hrtimer_try_to_cancel+0x22b/0x420
 hrtimer_cancel+0x3b/0x50
 cpu_clock_event_stop+0xd9/0x130
 __perf_event_overflow+0x580/0xe40
 perf_swevent_hrtimer+0x3c5/0x550
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_next_frame+0x50/0x2390
Code: 48 89 d8 48 c1 e8 03 48 89 44 24 30 80 3c 28 00 74 08 48 89 df e8 70 0a b1 00 48 89 5c 24 18 49 8b 5e 48 4d 8d 6e 38 4c 89 e8 <48> c1 e8 03 48 89 44 24 58 80 3c 28 00 74 08 4c 89 ef e8 49 0a b1
RSP: 0018:ffffc9000ab2f238 EFLAGS: 00000246
RAX: ffffc9000ab2f3a0 RBX: ffffffff8172fa38 RCX: 0000000000000001
RDX: ffffc9000ab2f3f8 RSI: dffffc0000000000 RDI: ffffc9000ab2f368
RBP: dffffc0000000000 R08: ffffc9000ab2f301 R09: 0000000000000000
R10: ffffc9000ab2f368 R11: fffff52001565e79 R12: ffffc9000ab2f3a0
R13: ffffc9000ab2f3a0 R14: ffffc9000ab2f368 R15: ffffc9000ab2f370
 __unwind_start+0x5b9/0x760
 arch_stack_walk+0xe4/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xbc4/0xd30
 kasan_populate_vmalloc+0x1db/0x270
 alloc_vmap_area+0xd62/0x14a0
 __get_vm_area_node+0x1f8/0x300
 __vmalloc_node_range_noprof+0x301/0x12f0
 __vmalloc_noprof+0xb1/0xf0
 bpf_prog_alloc_no_stats+0x4a/0x4d0
 bpf_prog_alloc+0x3c/0x1a0
 bpf_prog_load+0x735/0x1930
 __sys_bpf+0x4ff/0x850
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f07bf98ec29
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:00007f07c08ae038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f07bfbd5fa0 RCX: 00007f07bf98ec29
RDX: 0000000000000094 RSI: 0000200000000700 RDI: 0000000000000005
RBP: 00007f07bfa11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f07bfbd6038 R14: 00007f07bfbd5fa0 R15: 00007ffe92673a78
 </TASK>
