rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10499 ticks this GP) idle=4fbc/1/0x4000000000000000 softirq=13615/13616 fqs=5
rcu: 	(t=10500 jiffies g=6993 q=915 ncpus=2)
rcu: rcu_preempt kthread starved for 10488 jiffies! g6993 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27160 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5967 Comm: syz.1.19 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:native_queued_spin_lock_slowpath+0xaf/0x8e0
Code: 00 00 00 c7 44 24 60 00 00 00 00 0f 1f 44 00 00 4c 8d 74 24 60 49 89 df 49 c1 ef 03 41 bd 01 00 00 00 eb 06 89 44 24 60 f3 90 <48> 89 df be 04 00 00 00 e8 34 48 a6 f6 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90004fdf3a0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8e23d460 RCX: ffffffff8b7d6e5c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8e23d460
RBP: ffffc90004fdf498 R08: ffffffff8e23d463 R09: 1ffffffff1c47a8c
R10: dffffc0000000000 R11: fffffbfff1c47a8d R12: 1ffff920009fbe7c
R13: 0000000000000001 R14: ffffc90004fdf400 R15: 1ffffffff1c47a8c
FS:  00005555617ce500(0000) GS:ffff8880b8612000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd4ed670d58 CR3: 000000002744e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 queued_spin_lock_slowpath+0x43/0x50
 do_raw_spin_lock+0x21f/0x290
 alloc_vmap_area+0x41c/0x14a0
 __get_vm_area_node+0x1f8/0x300
 __vmalloc_node_range_noprof+0x301/0x12f0
 __vmalloc_node_noprof+0xc2/0x110
 dup_task_struct+0x3e7/0x860
 copy_process+0x54b/0x3c00
 kernel_clone+0x21e/0x840
 __se_sys_clone3+0x256/0x2d0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4ec7c3489
Code: d7 08 00 48 8d 3d bc d7 08 00 e8 f2 28 f6 ff 66 90 b8 ea ff ff ff 48 85 ff 74 2c 48 85 d2 74 27 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 18 74 01 c3 31 ed 48 83 e4 f0 4c 89 c7 ff d2 48 89 c7
RSP: 002b:00007ffcf6635568 EFLAGS: 00000202 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fd4ec745880 RCX: 00007fd4ec7c3489
RDX: 00007fd4ec745880 RSI: 0000000000000058 RDI: 00007ffcf66355b0
RBP: 00007fd4ed6706c0 R08: 00007fd4ed6706c0 R09: 00007ffcf6635697
R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffa8
R13: 000000000000006e R14: 00007ffcf66355b0 R15: 00007ffcf6635698
 </TASK>
CPU: 1 UID: 0 PID: 5957 Comm: syz.0.15 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:stack_trace_consume_entry+0xa2/0x280
Code: cc 41 0f b6 04 17 84 c0 0f 85 78 01 00 00 44 89 23 b0 01 e9 99 00 00 00 31 c0 e9 92 00 00 00 48 89 f8 48 c1 e8 03 80 3c 10 00 <74> 29 49 89 ff 48 89 74 24 08 49 89 d4 4c 89 04 24 4c 89 cb e8 65
RSP: 0018:ffffc900001dfc78 EFLAGS: 00000246
RAX: 1ffff9200003bfb0 RBX: ffffc900001dfd8c RCX: e6943f15f2501200
RDX: dffffc0000000000 RSI: ffffffff8ace06c5 RDI: ffffc900001dfd80
RBP: 1ffff9200003bfb2 R08: ffffc900001dfd90 R09: 0000000000000005
R10: ffffc900001dfd18 R11: ffffffff81ac4d00 R12: 0000000000000000
R13: 1ffff9200003bfb1 R14: ffffc900001dfd88 R15: 1ffff9200003bfb1
FS:  00007f743b8046c0(0000) GS:ffff8881a3c12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000112e3e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000050602
Call Trace:
 <IRQ>
 arch_stack_walk+0x110/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kfree+0x18e/0x440
 ieee80211_inform_bss+0xbd9/0x10a0
 cfg80211_inform_single_bss_data+0xd05/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b30
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x201c/0x2a90
 ieee80211_rx_napi+0x1a8/0x3d0
 ieee80211_handle_queued_frames+0xe8/0x1f0
 tasklet_action_common+0x36c/0x580
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__kernel_text_address+0xd/0x40
Code: e8 b8 22 97 00 eb b3 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 53 48 89 fb e8 43 00 00 00 <85> c0 0f 95 c0 48 81 fb 00 60 0a 91 0f 93 c1 48 81 fb f0 b8 20 91
RSP: 0018:ffffc90004f57258 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff81ce7fec RCX: e6943f15f2501201
RDX: 0000000000000001 RSI: ffffffff8dbaa0c3 RDI: ffffffff81ce7fec
RBP: ffffc90004f57310 R08: ffffc90004f57b18 R09: 0000000000000000
R10: ffffc90004f572d8 R11: fffff520009eae5d R12: ffff8881087b8000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920009eae5a
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kmem_cache_free+0x18f/0x400
 va_alloc+0xc8c/0xef0
 alloc_vmap_area+0x969/0x14a0
 __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: 0033:0x7f743a98ec29
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:00007f743b804038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f743abd6180 RCX: 00007f743a98ec29
RDX: 0000000000000094 RSI: 0000200000000ac0 RDI: 0000000000000005
RBP: 00007f743aa11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f743abd6218 R14: 00007f743abd6180 R15: 00007ffd4b928658
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 104956470545 wd_nsec: 104956472943
