------------[ cut here ]------------ verifier backtracking bug (stack slot out of bounds) WARNING: CPU: 0 PID: 5066 at kernel/bpf/verifier.c:4266 __mark_chain_precision+0x2a84/0x4d60 kernel/bpf/verifier.c:4266 Modules linked in: CPU: 0 PID: 5066 Comm: syz-executor245 Not tainted 6.7.0-rc4-next-20231206-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__mark_chain_precision+0x2a84/0x4d60 kernel/bpf/verifier.c:4266 Code: ff 89 de e8 8e e5 ec ff 84 db 0f 85 2c e1 ff ff e8 51 ea ec ff c6 05 60 54 88 0d 01 90 48 c7 c7 a0 4b d4 8a e8 2d d9 b2 ff 90 <0f> 0b 90 90 e9 09 e1 ff ff e8 2e ea ec ff 48 8d 7b 04 48 b8 00 00 RSP: 0018:ffffc90003abf2e8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814e05d9 RDX: ffff888024c3bb80 RSI: ffffffff814e05e6 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801b2e0000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000555556ba0380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6c37df1b10 CR3: 0000000074a2e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_chain_precision kernel/bpf/verifier.c:4314 [inline] check_cond_jmp_op+0xea0/0x72b0 kernel/bpf/verifier.c:14724 do_check kernel/bpf/verifier.c:17516 [inline] do_check_common+0x8cbc/0xe8e0 kernel/bpf/verifier.c:19955 do_check_main kernel/bpf/verifier.c:20046 [inline] bpf_check+0x5129/0xa420 kernel/bpf/verifier.c:20683 bpf_prog_load+0x1533/0x2200 kernel/bpf/syscall.c:2742 __sys_bpf+0xbf7/0x49d0 kernel/bpf/syscall.c:5414 __do_sys_bpf kernel/bpf/syscall.c:5518 [inline] __se_sys_bpf kernel/bpf/syscall.c:5516 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5516 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x62/0x6a RIP: 0033:0x7f3f5a049af9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcd0ae5d58 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3f5a049af9 RDX: 0000000000000048 RSI: 00000000200017c0 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001