verifier bug: REG INVARIANTS VIOLATION (true_reg1): range bounds violation u64=[0xffffdfcd, 0xffffffffffffdfcc] s64=[0x80000000ffffdfcd, 0x7fffffffffffdfcc] u32=[0xffffdfcd, 0xffffdfcc] s32=[0xffffdfcd, 0xffffdfcc] var_off=(0xffffdfcc, 0xffffffff00000000)
WARNING: kernel/bpf/verifier.c:2793 at reg_bounds_sanity_check+0x160/0x1e8 kernel/bpf/verifier.c:2793, CPU#0: syz.0.226/4019
Modules linked in:
CPU: 0 UID: 0 PID: 4019 Comm: syz.0.226 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+0x160/0x1e8 kernel/bpf/verifier.c:2793
lr : reg_bounds_sanity_check+0x160/0x1e8 kernel/bpf/verifier.c:2793
sp : ffff80008a88b750
x29: ffff80008a88b780 x28: 0000000000000010 x27: 0000000000000230
x26: f8f000000e59f310 x25: 0000000000000001 x24: 0000000000000010
x23: ffff800082594f90 x22: ffff800082594f18 x21: ffff800082597280
x20: f8f0000005138000 x19: f9f0000009539a30 x18: 00000000fffffffd
x17: ffffffffffffdfcd x16: 0000000000000000 x15: ffff800082d7f2ee
x14: 00000000ffffffea x13: ffff80008a88b3a8 x12: ffff800082b6f248
x11: ffff800082abf2a0 x10: ffff800082b6f2a0 x9 : 0000000000000001
x8 : 0000000000000001 x7 : 0000000000000001 x6 : ffffffffffffffff
x5 : 0000000000000ac3 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f00000097ab180
Call trace:
 reg_bounds_sanity_check+0x160/0x1e8 kernel/bpf/verifier.c:2793 (P)
 reg_set_min_max kernel/bpf/verifier.c:17134 [inline]
 reg_set_min_max+0x118/0x208 kernel/bpf/verifier.c:17101
 check_cond_jmp_op+0xae0/0x1480 kernel/bpf/verifier.c:17578
 do_check_insn kernel/bpf/verifier.c:21137 [inline]
 do_check kernel/bpf/verifier.c:21277 [inline]
 do_check_common+0x2688/0x2b60 kernel/bpf/verifier.c:24619
 do_check_main kernel/bpf/verifier.c:24702 [inline]
 bpf_check+0x1c20/0x26c0 kernel/bpf/verifier.c:26026
 bpf_prog_load+0x658/0xd80 kernel/bpf/syscall.c:3089
 __sys_bpf+0x944/0x1afc kernel/bpf/syscall.c:6228
 __do_sys_bpf kernel/bpf/syscall.c:6341 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6339 [inline]
 __arm64_sys_bpf+0x24/0x40 kernel/bpf/syscall.c:6339
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x48/0x104 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+0x34/0x124 arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0xa0/0xf0 arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:596
---[ end trace 0000000000000000 ]---