------------[ cut here ]------------ verifier bug: REG INVARIANTS VIOLATION (false_reg1): range bounds violation u64=[0x20, 0x0] s64=[0x20, 0x0] u32=[0x20, 0x0] s32=[0x20, 0x0] var_off=(0x20, 0x0)(1) WARNING: kernel/bpf/verifier.c:2689 at reg_bounds_sanity_check+0x6e6/0xc20 kernel/bpf/verifier.c:2683, CPU#1: syz.2.571/8264 Modules linked in: CPU: 1 UID: 0 PID: 8264 Comm: syz.2.571 Not tainted 6.16.0-rc4-next-20250704-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:reg_bounds_sanity_check+0x6e6/0xc20 kernel/bpf/verifier.c:2683 Code: 24 20 4c 8b 44 24 60 4c 8b 4c 24 58 41 ff 75 00 53 41 57 55 ff 74 24 38 ff 74 24 70 ff 74 24 40 e8 8f 6d aa ff 48 83 c4 38 90 <0f> 0b 90 90 48 bb 00 00 00 00 00 fc ff df 4d 89 f7 4c 8b 74 24 08 RSP: 0018:ffffc9001c636f28 EFLAGS: 00010286 RAX: dfc50076ae0d0f00 RBX: 0000000000000020 RCX: 0000000000080000 RDX: ffffc9000f001000 RSI: 0000000000012033 RDI: 0000000000012034 RBP: 0000000000000020 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa430 R12: ffff8880591ef168 R13: ffff8880591ef188 R14: ffff8880591ef1a0 R15: 0000000000000000 FS: 00007f11f4b786c0(0000) GS:ffff888125ce7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c35555b CR3: 0000000030890000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000008 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: reg_set_min_max+0x264/0x300 kernel/bpf/verifier.c:16263 check_cond_jmp_op+0x1625/0x2910 kernel/bpf/verifier.c:16695 do_check_insn kernel/bpf/verifier.c:19883 [inline] do_check+0x672a/0xe300 kernel/bpf/verifier.c:20018 do_check_common+0x188f/0x23f0 kernel/bpf/verifier.c:23175 do_check_main kernel/bpf/verifier.c:23258 [inline] bpf_check+0x1746a/0x1d2e0 kernel/bpf/verifier.c:24614 bpf_prog_load+0x1318/0x1930 kernel/bpf/syscall.c:2972 __sys_bpf+0x528/0x870 kernel/bpf/syscall.c:6007 __do_sys_bpf kernel/bpf/syscall.c:6117 [inline] __se_sys_bpf kernel/bpf/syscall.c:6115 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6115 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f11f3d8e929 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:00007f11f4b78038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f11f3fb6160 RCX: 00007f11f3d8e929 RDX: 0000000000000048 RSI: 00002000000017c0 RDI: 0000000000000005 RBP: 00007f11f3e10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f11f3fb6160 R15: 00007ffccca4f088