------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
5.15.175-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.20/4308 is trying to acquire lock:
ffffffff8c9fc578 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138

but task is already holding lock:
ffff8880b8f2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
ffff8880b8f2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1752

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (hrtimer_bases.lock){-.-.}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       lock_hrtimer_base kernel/time/hrtimer.c:173 [inline]
       hrtimer_start_range_ns+0x105/0xc80 kernel/time/hrtimer.c:1299
       hrtimer_start_expires include/linux/hrtimer.h:434 [inline]
       do_start_rt_bandwidth kernel/sched/rt.c:69 [inline]
       start_rt_bandwidth kernel/sched/rt.c:80 [inline]
       inc_rt_group kernel/sched/rt.c:1207 [inline]
       inc_rt_tasks kernel/sched/rt.c:1251 [inline]
       __enqueue_rt_entity kernel/sched/rt.c:1321 [inline]
       enqueue_rt_entity kernel/sched/rt.c:1368 [inline]
       enqueue_task_rt+0x5a0/0xbf0 kernel/sched/rt.c:1398
       enqueue_task+0x181/0x3a0 kernel/sched/core.c:1974
       __sched_setscheduler+0x1396/0x1db0 kernel/sched/core.c:7548
       _sched_setscheduler kernel/sched/core.c:7595 [inline]
       sched_setscheduler_nocheck kernel/sched/core.c:7642 [inline]
       sched_set_fifo+0x10e/0x1e0 kernel/sched/core.c:7666
       drm_vblank_worker_init+0x149/0x190 drivers/gpu/drm/drm_vblank_work.c:263
       drm_vblank_init+0x274/0x330 drivers/gpu/drm/drm_vblank.c:551
       vkms_create drivers/gpu/drm/vkms/vkms_drv.c:195 [inline]
       vkms_init+0x330/0x6d0 drivers/gpu/drm/vkms/vkms_drv.c:235
       do_one_initcall+0x22b/0x7a0 init/main.c:1302
       do_initcall_level+0x157/0x210 init/main.c:1375
       do_initcalls+0x49/0x90 init/main.c:1391
       kernel_init_freeable+0x425/0x5c0 init/main.c:1615
       kernel_init+0x19/0x290 init/main.c:1506
       ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

-> #3 (&rt_b->rt_runtime_lock){-...}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
       _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
       __enable_runtime kernel/sched/rt.c:840 [inline]
       rq_online_rt+0x123/0x300 kernel/sched/rt.c:2331
       set_rq_online kernel/sched/core.c:9034 [inline]
       sched_cpu_activate+0x508/0x6b0 kernel/sched/core.c:9154
       cpuhp_invoke_callback+0x49f/0x820 kernel/cpu.c:191
       cpuhp_thread_fun+0x3ee/0x790 kernel/cpu.c:822
       smpboot_thread_fn+0x51b/0x9d0 kernel/smpboot.c:164
       kthread+0x3f6/0x4f0 kernel/kthread.c:334
       ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

-> #2 (&rq->__lock){-.-.}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       _raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:368
       raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
       raw_spin_rq_lock kernel/sched/sched.h:1326 [inline]
       rq_lock kernel/sched/sched.h:1621 [inline]
       task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11488
       sched_cgroup_fork+0x2d3/0x330 kernel/sched/core.c:4463
       copy_process+0x224a/0x3ef0 kernel/fork.c:2319
       kernel_clone+0x210/0x960 kernel/fork.c:2603
       kernel_thread+0x168/0x1e0 kernel/fork.c:2655
       rest_init+0x21/0x330 init/main.c:706
       start_kernel+0x48c/0x540 init/main.c:1140
       secondary_startup_64_no_verify+0xb1/0xbb

-> #1 (&p->pi_lock){-.-.}-{2:2}:
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       try_to_wake_up+0xae/0x1300 kernel/sched/core.c:4027
       up+0x6e/0x90 kernel/locking/semaphore.c:190
       __up_console_sem+0x11a/0x1e0 kernel/printk/printk.c:256
       console_unlock+0x1145/0x12b0 kernel/printk/printk.c:2760
       vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
       dev_vprintk_emit+0x2aa/0x330 drivers/base/core.c:4638
       dev_printk_emit+0xd9/0x120 drivers/base/core.c:4649
       _dev_warn+0x11e/0x170 drivers/base/core.c:4705
       firmware_fallback_sysfs+0x681/0xc90 drivers/base/firmware_loader/fallback.c:654
       _request_firmware+0xc72/0x12c0 drivers/base/firmware_loader/main.c:876
       request_firmware_work_func+0x126/0x270 drivers/base/firmware_loader/main.c:1127
       process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
       worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
       kthread+0x3f6/0x4f0 kernel/kthread.c:334
       ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

-> #0 ((console_sem).lock){-.-.}-{2:2}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
       __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
       lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
       __down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
       console_trylock kernel/printk/printk.c:2575 [inline]
       console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
       vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
       _printk+0xd1/0x120 kernel/printk/printk.c:2299
       report_bug+0x1e5/0x2e0 lib/bug.c:195
       handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
       exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
       asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
       copy_from_user_nofault+0x15c/0x1c0
       bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
       ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
       bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
       bpf_prog_a7c3bb8cfcee081b+0x45/0xb40
       bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
       __bpf_prog_run include/linux/filter.h:628 [inline]
       bpf_prog_run include/linux/filter.h:635 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
       bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
       trace_hrtimer_start include/trace/events/timer.h:199 [inline]
       debug_activate kernel/time/hrtimer.c:476 [inline]
       enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
       __run_hrtimer kernel/time/hrtimer.c:1705 [inline]
       __hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1752
       hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
       local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
       __sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
       instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
       sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
       asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
       __check_object_size+0x63/0x410 mm/usercopy.c:269
       check_object_size include/linux/thread_info.h:199 [inline]
       check_copy_size include/linux/thread_info.h:232 [inline]
       copy_to_user include/linux/uaccess.h:199 [inline]
       bpf_verifier_vlog+0x187/0x320 kernel/bpf/verifier.c:303
       verbose+0x1f9/0x2a0 kernel/bpf/verifier.c:348
       print_verifier_state+0x2160/0x22a0 kernel/bpf/verifier.c:756
       __mark_chain_precision+0x1733/0x20a0 kernel/bpf/verifier.c:2700
       mark_chain_precision kernel/bpf/verifier.c:2719 [inline]
       check_cond_jmp_op kernel/bpf/verifier.c:9309 [inline]
       do_check+0xc8d1/0xf310 kernel/bpf/verifier.c:11472
       do_check_common+0x844/0x1070 kernel/bpf/verifier.c:13485
       do_check_main kernel/bpf/verifier.c:13548 [inline]
       bpf_check+0xcb96/0x12d40 kernel/bpf/verifier.c:14119
       bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2353
       __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4651
       __do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
       __se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
       __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753
       do_syscall_x64 arch/x86/entry/common.c:50 [inline]
       do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
       entry_SYSCALL_64_after_hwframe+0x66/0xd0

other info that might help us debug this:

Chain exists of:
  (console_sem).lock --> &rt_b->rt_runtime_lock --> hrtimer_bases.lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(hrtimer_bases.lock);
                               lock(&rt_b->rt_runtime_lock);
                               lock(hrtimer_bases.lock);
  lock((console_sem).lock);

 *** DEADLOCK ***

2 locks held by syz.0.20/4308:
 #0: ffff8880b8f2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 #0: ffff8880b8f2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1752
 #1: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311

stack backtrace:
CPU: 1 PID: 4308 Comm: syz.0.20 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:138
 __down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:239
 console_trylock kernel/printk/printk.c:2575 [inline]
 console_trylock_spinning+0x8a/0x3f0 kernel/printk/printk.c:1867
 vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
 _printk+0xd1/0x120 kernel/printk/printk.c:2299
 report_bug+0x1e5/0x2e0 lib/bug.c:195
 handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 5b c4 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 44 c4 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dd0be8 EFLAGS: 00010006
RAX: ffffffff81aac09c RBX: 0000000000000000 RCX: ffff8880299c1dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aabfad R09: fffffbfff2131221
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc90000dd0c48
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_a7c3bb8cfcee081b+0x45/0xb40
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
 trace_hrtimer_start include/trace/events/timer.h:199 [inline]
 debug_activate kernel/time/hrtimer.c:476 [inline]
 enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
 __run_hrtimer kernel/time/hrtimer.c:1705 [inline]
 __hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__check_object_size+0x63/0x410 mm/usercopy.c:269
Code: d5 48 89 df 48 89 ee e8 4b fc ac ff 48 39 eb 0f 87 e8 02 00 00 49 83 fe 10 0f 86 02 03 00 00 4c 89 f7 4c 89 ee e8 ad 03 00 00 <89> c5 89 c7 48 c7 c6 00 f8 c0 8c e8 9d fe ac ff 85 ed 74 2c 83 fd
RSP: 0018:ffffc900031feb98 EFLAGS: 00000283
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffc900031f8000
RDX: ffffc90003200000 RSI: 0000000000000000 RDI: 000000000001954d
RBP: 0000777f83d93993 R08: ffffffff81d38a75 R09: ffffed100f84d8ce
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100f84d94f
R13: 0000000000000002 R14: ffff88807c26c66c R15: 0000000000000001
 check_object_size include/linux/thread_info.h:199 [inline]
 check_copy_size include/linux/thread_info.h:232 [inline]
 copy_to_user include/linux/uaccess.h:199 [inline]
 bpf_verifier_vlog+0x187/0x320 kernel/bpf/verifier.c:303
 verbose+0x1f9/0x2a0 kernel/bpf/verifier.c:348
 print_verifier_state+0x2160/0x22a0 kernel/bpf/verifier.c:756
 __mark_chain_precision+0x1733/0x20a0 kernel/bpf/verifier.c:2700
 mark_chain_precision kernel/bpf/verifier.c:2719 [inline]
 check_cond_jmp_op kernel/bpf/verifier.c:9309 [inline]
 do_check+0xc8d1/0xf310 kernel/bpf/verifier.c:11472
 do_check_common+0x844/0x1070 kernel/bpf/verifier.c:13485
 do_check_main kernel/bpf/verifier.c:13548 [inline]
 bpf_check+0xcb96/0x12d40 kernel/bpf/verifier.c:14119
 bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2353
 __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4651
 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc31636dd29
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:00007fc3141de038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc31655dfa0 RCX: 00007fc31636dd29
RDX: 0000000000000080 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 00007fc3163e9b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc31655dfa0 R15: 00007ffecf583168
 </TASK>
WARNING: CPU: 1 PID: 4308 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4308 Comm: syz.0.20 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 5b c4 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 44 c4 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dd0be8 EFLAGS: 00010006
RAX: ffffffff81aac09c RBX: 0000000000000000 RCX: ffff8880299c1dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aabfad R09: fffffbfff2131221
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc90000dd0c48
FS:  00007fc3141de6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f52ca502bac CR3: 00000000238f8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_a7c3bb8cfcee081b+0x45/0xb40
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
 trace_hrtimer_start include/trace/events/timer.h:199 [inline]
 debug_activate kernel/time/hrtimer.c:476 [inline]
 enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
 __run_hrtimer kernel/time/hrtimer.c:1705 [inline]
 __hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__check_object_size+0x63/0x410 mm/usercopy.c:269
Code: d5 48 89 df 48 89 ee e8 4b fc ac ff 48 39 eb 0f 87 e8 02 00 00 49 83 fe 10 0f 86 02 03 00 00 4c 89 f7 4c 89 ee e8 ad 03 00 00 <89> c5 89 c7 48 c7 c6 00 f8 c0 8c e8 9d fe ac ff 85 ed 74 2c 83 fd
RSP: 0018:ffffc900031feb98 EFLAGS: 00000283
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffc900031f8000
RDX: ffffc90003200000 RSI: 0000000000000000 RDI: 000000000001954d
RBP: 0000777f83d93993 R08: ffffffff81d38a75 R09: ffffed100f84d8ce
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100f84d94f
R13: 0000000000000002 R14: ffff88807c26c66c R15: 0000000000000001
 check_object_size include/linux/thread_info.h:199 [inline]
 check_copy_size include/linux/thread_info.h:232 [inline]
 copy_to_user include/linux/uaccess.h:199 [inline]
 bpf_verifier_vlog+0x187/0x320 kernel/bpf/verifier.c:303
 verbose+0x1f9/0x2a0 kernel/bpf/verifier.c:348
 print_verifier_state+0x2160/0x22a0 kernel/bpf/verifier.c:756
 __mark_chain_precision+0x1733/0x20a0 kernel/bpf/verifier.c:2700
 mark_chain_precision kernel/bpf/verifier.c:2719 [inline]
 check_cond_jmp_op kernel/bpf/verifier.c:9309 [inline]
 do_check+0xc8d1/0xf310 kernel/bpf/verifier.c:11472
 do_check_common+0x844/0x1070 kernel/bpf/verifier.c:13485
 do_check_main kernel/bpf/verifier.c:13548 [inline]
 bpf_check+0xcb96/0x12d40 kernel/bpf/verifier.c:14119
 bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2353
 __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4651
 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc31636dd29
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:00007fc3141de038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc31655dfa0 RCX: 00007fc31636dd29
RDX: 0000000000000080 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 00007fc3163e9b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc31655dfa0 R15: 00007ffecf583168
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 89 df             	mov    %rbx,%rdi
   3:	48 89 ee             	mov    %rbp,%rsi
   6:	e8 4b fc ac ff       	call   0xffacfc56
   b:	48 39 eb             	cmp    %rbp,%rbx
   e:	0f 87 e8 02 00 00    	ja     0x2fc
  14:	49 83 fe 10          	cmp    $0x10,%r14
  18:	0f 86 02 03 00 00    	jbe    0x320
  1e:	4c 89 f7             	mov    %r14,%rdi
  21:	4c 89 ee             	mov    %r13,%rsi
  24:	e8 ad 03 00 00       	call   0x3d6
* 29:	89 c5                	mov    %eax,%ebp <-- trapping instruction
  2b:	89 c7                	mov    %eax,%edi
  2d:	48 c7 c6 00 f8 c0 8c 	mov    $0xffffffff8cc0f800,%rsi
  34:	e8 9d fe ac ff       	call   0xffacfed6
  39:	85 ed                	test   %ebp,%ebp
  3b:	74 2c                	je     0x69
  3d:	83                   	.byte 0x83
  3e:	fd                   	std