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verifier bug: error during ctx access conversion (0)(1)
WARNING: CPU: 0 PID: 7880 at kernel/bpf/verifier.c:21452 convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452
Modules linked in:
CPU: 0 UID: 0 PID: 7880 Comm: syz.1.1649 Not tainted syzkaller #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452
lr : convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452
sp : ffff80008843b9e0
x29: ffff80008843b9e0 x28: f9f0000007ea0000 x27: 0000000000000002
x26: f3ff800082db5058 x25: 0000000000000000 x24: 0000000000000000
x23: ffff8000816c6844 x22: 0000000000000004 x21: 0000000000000002
x20: 0000000000000004 x19: ffff80008242b3e8 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffc91b4038
x14: f2f0000007c4dd00 x13: 0000000000000000 x12: ffff800082911258
x11: 0000000000001e4f x10: f2f0000007c4dd00 x9 : f9f0000007d4a800
x8 : 0000000000000001 x7 : f2f0000007c4dd00 x6 : 0000000000000002
x5 : 0000000000000400 x4 : 0000000000000400 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f2f0000007c4dc80
Call trace:
 convert_ctx_accesses+0x9b0/0xb04 kernel/bpf/verifier.c:21452 (P)
 bpf_check+0x12f8/0x2aac kernel/bpf/verifier.c:24743
 bpf_prog_load+0x634/0xb74 kernel/bpf/syscall.c:2979
 __sys_bpf+0x2e0/0x1a3c 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+0x24/0x34 kernel/bpf/syscall.c:6137
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151
 el0_svc+0x34/0x10c arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:596
---[ end trace 0000000000000000 ]---