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verifier bug: REG INVARIANTS VIOLATION (true_reg1): range bounds violation u64=[0xffffdfcd, 0xffffdfcc] s64=[0xffffdfcd, 0xffffdfcc] u32=[0xffffdfcd, 0xffffdfcc] s32=[0xffffdfcd, 0xffffdfcc] var_off=(0xffffdfcc, 0x0)(1)
WARNING: CPU: 1 PID: 4642 at kernel/bpf/verifier.c:2722 reg_bounds_sanity_check+0x164/0x210 kernel/bpf/verifier.c:2722
Modules linked in:
CPU: 1 UID: 0 PID: 4642 Comm: syz.1.440 Not tainted syzkaller #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : reg_bounds_sanity_check+0x164/0x210 kernel/bpf/verifier.c:2722
lr : reg_bounds_sanity_check+0x164/0x210 kernel/bpf/verifier.c:2722
sp : ffff80008a9237f0
x29: ffff80008a923820 x28: 0000000000000006 x27: 0000000000000010
x26: f6f000000a760348 x25: 0000000000000001 x24: f9f000000a748000
x23: ffff800082429828 x22: ffff8000824297b0 x21: ffff80008242b9b0
x20: f9f000000a748000 x19: f2f000000a760a58 x18: 00000000fffffffd
x17: 0000000000000000 x16: 00000000d58b6f8f x15: ffff80008a9233f0
x14: 00000000ffffffea x13: 0000000000000118 x12: ffff800082911258
x11: 00000000000000c0 x10: fedfada649da9600 x9 : cdd1776964d182d8
x8 : f8f000000a4bc978 x7 : 0000000000000004 x6 : 00000000000000ae
x5 : 0000000000000002 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f000000a4bb780
Call trace:
 reg_bounds_sanity_check+0x164/0x210 kernel/bpf/verifier.c:2722 (P)
 reg_set_min_max kernel/bpf/verifier.c:16334 [inline]
 reg_set_min_max+0x114/0x1f4 kernel/bpf/verifier.c:16308
 check_cond_jmp_op+0x8d0/0x12cc kernel/bpf/verifier.c:16768
 do_check_insn kernel/bpf/verifier.c:19956 [inline]
 do_check kernel/bpf/verifier.c:20093 [inline]
 do_check_common+0x2364/0x29e8 kernel/bpf/verifier.c:23260
 do_check_main kernel/bpf/verifier.c:23343 [inline]
 bpf_check+0x2280/0x2aac kernel/bpf/verifier.c:24703
 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
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