------------[ cut here ]------------ verifier backtracking bug WARNING: CPU: 0 PID: 3465 at kernel/bpf/verifier.c:1783 __mark_chain_precision+0x197a/0x1ea0 kernel/bpf/verifier.c:1783 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3465 Comm: syz-executor.1 Not tainted 5.3.0-rc7+ #0 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+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2dc/0x755 kernel/panic.c:219 __warn.cold+0x20/0x4c kernel/panic.c:576 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:__mark_chain_precision+0x197a/0x1ea0 kernel/bpf/verifier.c:1783 Code: 08 31 ff 89 de e8 a6 9d f2 ff 84 db 0f 85 07 ff ff ff e8 59 9c f2 ff 48 c7 c7 a0 a9 b1 87 c6 05 14 f9 41 08 01 e8 be 24 c4 ff <0f> 0b 41 bc f2 ff ff ff e9 e8 fe ff ff 48 8b bd d8 fe ff ff e8 4d RSP: 0018:ffff8880591df380 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000000089ec RSI: ffffffff815c26f6 RDI: ffffed100b23be62 RBP: ffff8880591df4d0 R08: ffff888061af24c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff88806871d140 R14: ffff888091e25ec0 R15: ffff8880591df468 mark_chain_precision kernel/bpf/verifier.c:1820 [inline] check_cond_jmp_op+0xcd8/0x3c30 kernel/bpf/verifier.c:5842 do_check+0x63cd/0x8a30 kernel/bpf/verifier.c:7784 bpf_check+0x6fff/0x99b2 kernel/bpf/verifier.c:9298 bpf_prog_load+0xe68/0x1660 kernel/bpf/syscall.c:1709 __do_sys_bpf+0xa44/0x3350 kernel/bpf/syscall.c:2866 __se_sys_bpf kernel/bpf/syscall.c:2825 [inline] __x64_sys_bpf+0x73/0xb0 kernel/bpf/syscall.c:2825 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4598e9 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9577900c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f95779016d4 R13: 00000000004bfd15 R14: 00000000004d1a58 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..