------------[ cut here ]------------ verifier backtracking bug WARNING: CPU: 1 PID: 9452 at kernel/bpf/verifier.c:1782 __mark_chain_precision+0x21e7/0x2320 kernel/bpf/verifier.c:1782 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9452 Comm: syz-executor115 Not tainted 5.3.0-rc3+ #68 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d8/0x2f8 lib/dump_stack.c:113 panic+0x25c/0x799 kernel/panic.c:219 __warn+0x22f/0x230 kernel/panic.c:576 report_bug+0x190/0x290 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:__mark_chain_precision+0x21e7/0x2320 kernel/bpf/verifier.c:1782 Code: 0f 8c 83 df ff ff e8 b8 8f 28 00 e9 79 df ff ff e8 8e 96 ef ff c6 05 9b c7 36 07 01 48 c7 c7 48 c2 3d 88 31 c0 e8 59 77 c2 ff <0f> 0b e9 82 e1 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 9f df ff RSP: 0018:ffff888096d27590 EFLAGS: 00010246 RAX: 018627706b683000 RBX: 0000000000000000 RCX: ffff888097920480 RDX: 0000000000000000 RSI: ffffffff815d0e88 RDI: 0000000000000282 RBP: ffff888096d276b0 R08: ffffffff81790b14 R09: fffffbfff111a93f R10: fffffbfff111a93f R11: 0000000000000000 R12: 0000000000000001 R13: ffff88809bf8cd10 R14: 0000000000000000 R15: 0000000000000000 mark_chain_precision kernel/bpf/verifier.c:1819 [inline] propagate_precision kernel/bpf/verifier.c:7176 [inline] is_state_visited kernel/bpf/verifier.c:7297 [inline] do_check+0xba5f/0x23960 kernel/bpf/verifier.c:7509 bpf_check+0x3f5a/0xe730 kernel/bpf/verifier.c:9292 bpf_prog_load kernel/bpf/syscall.c:1698 [inline] __do_sys_bpf+0x7a38/0xbf20 kernel/bpf/syscall.c:2849 __se_sys_bpf kernel/bpf/syscall.c:2808 [inline] __x64_sys_bpf+0x7a/0x90 kernel/bpf/syscall.c:2808 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4402b9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe453ca588 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402b9 RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005 RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401b40 R13: 0000000000401bd0 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..