rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 0, t=10502 jiffies, g=494033, q=48)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295235203-4295224701), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g494033 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:28880 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:
NMI backtrace for cpu 0
CPU: 0 PID: 6280 Comm: syz-executor.0 Not tainted 5.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1d1/0x1d6 kernel/rcu/tree_stall.h:479
print_other_cpu_stall kernel/rcu/tree_stall.h:584 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:709 [inline]
rcu_pending kernel/rcu/tree.c:3922 [inline]
rcu_sched_clock_irq+0x2001/0x20c0 kernel/rcu/tree.c:2641
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1537 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3ba/0xb40 kernel/locking/qspinlock.c:508
Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f
RSP: 0018:ffffc90000007a30 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff18efae4
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffffffff8c77d722
RBP: ffffffff8c77d720 R08: 0000000000000001 R09: ffffffff8c77d723
R10: fffffbfff18efae4 R11: 0000000000000080 R12: 00000000000079c1
R13: fffffbfff18efae4 R14: 0000000000000001 R15: ffff8880b9c52840
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+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:354 [inline]
mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1516
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 3a a1 28 f8 48 89 ef e8 e2 16 29 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 a3 f4 1c f8 65 8b 05 ac 6d cf 76 85 c0 74 0a 5b 5d c3 e8 80 51
RSP: 0018:ffffc9000177f3d0 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1f9f78a
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffffffff90411768 R08: 0000000000000001 R09: ffffffff8fcfa8e7
R10: 0000000000000001 R11: 0000000000086088 R12: 0000000000000009
R13: 0000000000000009 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:892 [inline]
bpf_int_jit_compile+0xe36/0x11e0 arch/x86/net/bpf_jit_comp.c:2338
bpf_prog_select_runtime+0x464/0x6a0 kernel/bpf/core.c:1914
bpf_prog_load+0xe8b/0x21f0 kernel/bpf/syscall.c:2305
__sys_bpf+0x67e/0x5df0 kernel/bpf/syscall.c:4587
__do_sys_bpf kernel/bpf/syscall.c:4691 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4689 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689
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:00007fe220d0c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffd062566df R14: 00007fe220d0c300 R15: 0000000000022000
================================
WARNING: inconsistent lock state
5.14.0-rc7-syzkaller #0 Not tainted
--------------------------------
inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
syz-executor.0/6280 [HC0[0]:SC1[1]:HE0:SE0] takes:
ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: print_other_cpu_stall kernel/rcu/tree_stall.h:543 [inline]
ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: check_cpu_stall kernel/rcu/tree_stall.h:709 [inline]
ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: rcu_pending kernel/rcu/tree.c:3922 [inline]
ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: rcu_sched_clock_irq+0xc9a/0x20c0 kernel/rcu/tree.c:2641
{IN-HARDIRQ-W} state was registered at:
lock_acquire kernel/locking/lockdep.c:5625 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
rcu_report_exp_cpu_mult+0x1c/0x280 kernel/rcu/tree_exp.h:237
flush_smp_call_function_queue+0x34b/0x640 kernel/smp.c:663
__sysvec_call_function_single+0x95/0x3d0 arch/x86/kernel/smp.c:248
sysvec_call_function_single+0x8e/0xc0 arch/x86/kernel/smp.c:243
asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:646
lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5593
down_write+0x92/0x150 kernel/locking/rwsem.c:1406
anon_vma_lock_write include/linux/rmap.h:116 [inline]
__anon_vma_prepare+0xbf/0x560 mm/rmap.c:203
anon_vma_prepare include/linux/rmap.h:149 [inline]
do_anonymous_page mm/memory.c:3765 [inline]
handle_pte_fault mm/memory.c:4556 [inline]
__handle_mm_fault+0x4338/0x5320 mm/memory.c:4693
handle_mm_fault+0x1c8/0x790 mm/memory.c:4791
faultin_page mm/gup.c:951 [inline]
__get_user_pages+0x503/0xf70 mm/gup.c:1173
__get_user_pages_locked mm/gup.c:1359 [inline]
__get_user_pages_remote+0x18f/0x840 mm/gup.c:1868
get_user_pages_remote+0x63/0x90 mm/gup.c:1941
get_arg_page+0xba/0x200 fs/exec.c:220
copy_string_kernel+0x1b4/0x520 fs/exec.c:631
kernel_execve+0x25c/0x460 fs/exec.c:1961
call_usermodehelper_exec_async+0x2e3/0x580 kernel/umh.c:112
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
irq event stamp: 9744713
hardirqs last enabled at (9744712): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
hardirqs last disabled at (9744713): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100
softirqs last enabled at (7422052): [] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last enabled at (7422052): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
softirqs last disabled at (7422055): [] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last disabled at (7422055): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(rcu_node_0);
lock(rcu_node_0);
*** DEADLOCK ***
6 locks held by syz-executor.0/6280:
#0: ffffffff8ba97868 (vmap_purge_lock){+.+.}-{3:3}, at: _vm_unmap_aliases.part.0+0x382/0x500 mm/vmalloc.c:2071
#1: ffffffff8ba97ab8 (free_vmap_area_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
#1: ffffffff8ba97ab8 (free_vmap_area_lock){+.+.}-{2:2}, at: __cond_resched_lock+0xa0/0xf0 kernel/sched/core.c:7802
#2: ffffffff8baa4cb0 (init_mm.page_table_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
#2: ffffffff8baa4cb0 (init_mm.page_table_lock){+.+.}-{2:2}, at: kasan_depopulate_vmalloc_pte+0x42/0x70 mm/kasan/shadow.c:371
#3: ffffffff8b97c280 (rcu_read_lock){....}-{1:2}, at: ieee80211_iterate_active_interfaces_atomic+0x0/0x180 net/mac80211/util.c:1237
#4: ffffffff8c77d738 (hwsim_radio_lock){+.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
#4: ffffffff8c77d738 (hwsim_radio_lock){+.-.}-{2:2}, at: mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1516
#5: ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: print_other_cpu_stall kernel/rcu/tree_stall.h:543 [inline]
#5: ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: check_cpu_stall kernel/rcu/tree_stall.h:709 [inline]
#5: ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: rcu_pending kernel/rcu/tree.c:3922 [inline]
#5: ffffffff8b9850d8 (rcu_node_0){?.-.}-{2:2}, at: rcu_sched_clock_irq+0xc9a/0x20c0 kernel/rcu/tree.c:2641
stack backtrace:
CPU: 0 PID: 6280 Comm: syz-executor.0 Not tainted 5.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
print_usage_bug kernel/locking/lockdep.c:203 [inline]
valid_state kernel/locking/lockdep.c:3933 [inline]
mark_lock_irq kernel/locking/lockdep.c:4136 [inline]
mark_lock.cold+0x61/0x8e kernel/locking/lockdep.c:4593
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4194
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4212 [inline]
lockdep_hardirqs_on_prepare kernel/locking/lockdep.c:4280 [inline]
lockdep_hardirqs_on_prepare+0x135/0x400 kernel/locking/lockdep.c:4232
trace_hardirqs_on+0x5b/0x1c0 kernel/trace/trace_preemptirq.c:49
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3ba/0xb40 kernel/locking/qspinlock.c:508
Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f
RSP: 0018:ffffc90000007a30 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff18efae4
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffffffff8c77d722
RBP: ffffffff8c77d720 R08: 0000000000000001 R09: ffffffff8c77d723
R10: fffffbfff18efae4 R11: 0000000000000080 R12: 00000000000079c1
R13: fffffbfff18efae4 R14: 0000000000000001 R15: ffff8880b9c52840
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+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:354 [inline]
mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1516
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 3a a1 28 f8 48 89 ef e8 e2 16 29 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 a3 f4 1c f8 65 8b 05 ac 6d cf 76 85 c0 74 0a 5b 5d c3 e8 80 51
RSP: 0018:ffffc9000177f3d0 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1f9f78a
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffffffff90411768 R08: 0000000000000001 R09: ffffffff8fcfa8e7
R10: 0000000000000001 R11: 0000000000086088 R12: 0000000000000009
R13: 0000000000000009 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:892 [inline]
bpf_int_jit_compile+0xe36/0x11e0 arch/x86/net/bpf_jit_comp.c:2338
bpf_prog_select_runtime+0x464/0x6a0 kernel/bpf/core.c:1914
bpf_prog_load+0xe8b/0x21f0 kernel/bpf/syscall.c:2305
__sys_bpf+0x67e/0x5df0 kernel/bpf/syscall.c:4587
__do_sys_bpf kernel/bpf/syscall.c:4691 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4689 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689
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:00007fe220d0c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffd062566df R14: 00007fe220d0c300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: eb c6 jmp 0xffffffc8
2: 45 01 01 add %r8d,(%r9)
5: 41 bc 00 80 00 00 mov $0x8000,%r12d
b: 48 c1 e9 03 shr $0x3,%rcx
f: 83 e3 07 and $0x7,%ebx
12: 41 be 01 00 00 00 mov $0x1,%r14d
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 4c 8d 2c 01 lea (%rcx,%rax,1),%r13
26: eb 0c jmp 0x34
28: f3 90 pause
* 2a: 41 83 ec 01 sub $0x1,%r12d <-- trapping instruction
2e: 0f 84 72 04 00 00 je 0x4a6
34: 41 0f b6 45 00 movzbl 0x0(%r13),%eax
39: 38 d8 cmp %bl,%al
3b: 7f 08 jg 0x45
3d: 84 c0 test %al,%al
3f: 0f .byte 0xf