------------[ cut here ]------------ verifier backtracking bug (stack slot out of bounds) WARNING: CPU: 1 PID: 2795 at kernel/bpf/verifier.c:4251 __mark_chain_precision+0xb1c/0x1080 kernel/bpf/verifier.c:4251 Modules linked in: CPU: 1 PID: 2795 Comm: syz-executor.0 Not tainted 6.7.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__mark_chain_precision+0xb1c/0x1080 kernel/bpf/verifier.c:4251 Code: 48 89 df e8 36 5a ff ff 80 3d cc 5d f1 01 00 0f 85 2c ff ff ff c6 05 bf 5d f1 01 01 90 48 c7 c7 08 b5 bd 82 e8 95 82 ea ff 90 <0f> 0b 90 90 e9 0e ff ff ff 42 8b b4 a3 a4 2d 00 00 4c 8d b3 70 2e RSP: 0018:ffffc900012cb970 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88810e7d8000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff82b96199 RDI: 00000000ffffffff RBP: ffff88810eb07000 R08: 0000000000000000 R09: ffffffff82ea9be0 R10: ffffc900012cb810 R11: ffffffff82f89c28 R12: 0000000000000000 R13: ffff88810c28ec00 R14: 0000000000000001 R15: 0000000000000000 FS: 00007fad952476c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fad957e5988 CR3: 0000000119635000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_chain_precision kernel/bpf/verifier.c:4299 [inline] check_cond_jmp_op+0x2cb/0x15b0 kernel/bpf/verifier.c:14685 do_check kernel/bpf/verifier.c:17477 [inline] do_check_common+0x210a/0x3060 kernel/bpf/verifier.c:19916 do_check_main kernel/bpf/verifier.c:20007 [inline] bpf_check+0x1742/0x2990 kernel/bpf/verifier.c:20644 bpf_prog_load+0x808/0xc40 kernel/bpf/syscall.c:2742 __sys_bpf+0x6d8/0x23c0 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+0x19/0x20 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+0x63/0x6b RIP: 0033:0x7fad956c4ae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fad952470c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fad957e3f80 RCX: 00007fad956c4ae9 RDX: 0000000000000048 RSI: 00000000200017c0 RDI: 0000000000000005 RBP: 00007fad9571047a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fad957e3f80 R15: 00007ffccb5a5f58