rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10502 jiffies, g=465945, q=105)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295214499-4295203997), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g465945 f0x2 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:28864 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4681 [inline]
__schedule+0x93a/0x26f0 kernel/sched/core.c:5938
schedule+0xd3/0x270 kernel/sched/core.c:6017
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop kernel/rcu/tree.c:1996 [inline]
rcu_gp_kthread+0xd34/0x1980 kernel/rcu/tree.c:2169
kthread+0x3e5/0x4d0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2319 Comm: syz-executor.3 Not tainted 5.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x78f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1527
Code: bb ac 3c 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 36 09 00 00 44 0f b6 bb ac 3c 00 00 <31> ff 44 89 fe e8 77 34 43 fc 45 84 ff 0f 84 77 ff ff ff e8 29 2e
RSP: 0018:ffffc90000007ba0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88802c5fb2a0 RCX: 0000000000000100
RDX: 0000000000000004 RSI: ffffffff85327a83 RDI: ffff88802c5fef4c
RBP: dffffc0000000000 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffff85327ab9 R11: 0000000000000000 R12: ffff8880aac863c0
R13: ffff888031e234d0 R14: ffff888031e232a0 R15: 0000000000000000
FS: 00007fe76ad94700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000568000 CR3: 0000000064528000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x16e/0x1c0 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:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191
Code: 74 24 10 e8 5a fa 2d f8 48 89 ef e8 02 70 2e f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 c3 4d 22 f8 65 8b 05 bc c8 d4 76 85 c0 74 0a 5b 5d c3 e8 a0 aa
RSP: 0018:ffffc90001b77440 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1f9ad8a
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffffffff90413f88 R08: 0000000000000001 R09: ffffffff8fcd58e7
R10: 0000000000000001 R11: 0000000000086088 R12: 0000000000000016
R13: 0000000000000016 R14: dead000000000100 R15: dffffc0000000000
__debug_check_no_obj_freed lib/debugobjects.c:997 [inline]
debug_check_no_obj_freed+0x20c/0x420 lib/debugobjects.c:1018
free_pages_prepare mm/page_alloc.c:1351 [inline]
free_pcp_prepare+0x24e/0x780 mm/page_alloc.c:1397
free_unref_page_prepare mm/page_alloc.c:3332 [inline]
free_unref_page+0x19/0x690 mm/page_alloc.c:3411
kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:375
apply_to_pte_range mm/memory.c:2532 [inline]
apply_to_pmd_range mm/memory.c:2576 [inline]
apply_to_pud_range mm/memory.c:2612 [inline]
apply_to_p4d_range mm/memory.c:2648 [inline]
__apply_to_page_range+0x694/0x1080 mm/memory.c:2682
kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:485
__purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1670
_vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2073
_vm_unmap_aliases mm/vmalloc.c:2047 [inline]
vm_unmap_aliases+0x47/0x50 mm/vmalloc.c:2096
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1740
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1797 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1943
bpf_jit_binary_lock_ro include/linux/filter.h:866 [inline]
bpf_int_jit_compile+0xe36/0x11e0 arch/x86/net/bpf_jit_comp.c:2319
bpf_prog_select_runtime+0x464/0x6a0 kernel/bpf/core.c:1914
bpf_prog_load+0xe8b/0x21f0 kernel/bpf/syscall.c:2278
__sys_bpf+0x65a/0x53b0 kernel/bpf/syscall.c:4469
__do_sys_bpf kernel/bpf/syscall.c:4573 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4571 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4571
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe76ad94188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000078 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffdb86feaaf R14: 00007fe76ad94300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: bb ac 3c 00 00 mov $0x3cac,%ebx
5: 48 89 f8 mov %rdi,%rax
8: 48 89 fa mov %rdi,%rdx
b: 48 c1 e8 03 shr $0x3,%rax
f: 83 e2 07 and $0x7,%edx
12: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax
16: 38 d0 cmp %dl,%al
18: 7f 08 jg 0x22
1a: 84 c0 test %al,%al
1c: 0f 85 36 09 00 00 jne 0x958
22: 44 0f b6 bb ac 3c 00 movzbl 0x3cac(%rbx),%r15d
29: 00
* 2a: 31 ff xor %edi,%edi <-- trapping instruction
2c: 44 89 fe mov %r15d,%esi
2f: e8 77 34 43 fc callq 0xfc4334ab
34: 45 84 ff test %r15b,%r15b
37: 0f 84 77 ff ff ff je 0xffffffb4
3d: e8 .byte 0xe8
3e: 29 2e sub %ebp,(%rsi)