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verifier bug: error during ctx access conversion (0)(1)
WARNING: CPU: 1 PID: 16911 at kernel/bpf/verifier.c:21452 convert_ctx_accesses+0x1740/0x24a8 kernel/bpf/verifier.c:21452
Modules linked in:
CPU: 1 UID: 0 PID: 16911 Comm: syz.3.4770 Not tainted syzkaller #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : convert_ctx_accesses+0x1740/0x24a8 kernel/bpf/verifier.c:21452
lr : convert_ctx_accesses+0x1740/0x24a8 kernel/bpf/verifier.c:21452
sp : ffff8000a8087520
x29: ffff8000a8087520 x28: ffff00002aa88000 x27: 0000000000000000
x26: 0000000000000000 x25: 0000000000000002 x24: ffff00002aa88670
x23: ffff00002aa88000 x22: 0000000000000000 x21: dfff800000000000
x20: 1fffe00005551001 x19: ffff80008557b500 x18: 00000000ffffffff
x17: 0000000000000000 x16: ffff00006a0ab4c4 x15: 0000000000000000
x14: 1ffff00010e41d75 x13: 0000000000000000 x12: ffff6000026b76f1
x11: 1fffe000026b76f0 x10: ffff6000026b76f0 x9 : dfff800000000000
x8 : ffff0000135bb783 x7 : 0000000000000001 x6 : ffff6000026b76f0
x5 : ffff0000135bb780 x4 : ffff6000026b76f1 x3 : 1fffe0000d41733e
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000177dbc80
Call trace:
 convert_ctx_accesses+0x1740/0x24a8 kernel/bpf/verifier.c:21452 (P)
 bpf_check+0x3c74/0x9508 kernel/bpf/verifier.c:24743
 bpf_prog_load+0xe2c/0x1b74 kernel/bpf/syscall.c:2979
 __sys_bpf+0x9c4/0x29c8 kernel/bpf/syscall.c:6029
 __do_sys_bpf kernel/bpf/syscall.c:6139 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6137 [inline]
 __arm64_sys_bpf+0x70/0xa4 kernel/bpf/syscall.c:6137
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x50/0x1a0 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 1058
hardirqs last  enabled at (1057): [<ffff800080253fdc>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1556 [inline]
hardirqs last  enabled at (1057): [<ffff800080253fdc>] finish_lock_switch kernel/sched/core.c:5105 [inline]
hardirqs last  enabled at (1057): [<ffff800080253fdc>] finish_task_switch.isra.0+0x1a8/0x854 kernel/sched/core.c:5223
hardirqs last disabled at (1058): [<ffff8000854445a8>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574
softirqs last  enabled at (1036): [<ffff8000801bcd28>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (1036): [<ffff8000801bcd28>] handle_softirqs+0x88c/0xdb4 kernel/softirq.c:607
softirqs last disabled at (1025): [<ffff800080010850>] __do_softirq+0x14/0x20 kernel/softirq.c:613
---[ end trace 0000000000000000 ]---