invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 18680 Comm: syz-executor.5 Not tainted 6.1.43-syzkaller-00006-g48c6c901fe0e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:bpf_dispatcher_xdp+0x814/0x1000 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 48 81 fa e0 07 00 a0 7f 17 48 81 fa e0 07 00 a0 0f 84 0a c7 ff ff e2 0f 1f 84 00 00 00 00 00 48 81 fa dc 08 00 a0 0f 84 ef RSP: 0018:ffffc900036ef8b0 EFLAGS: 00010286 RAX: ffffffff84119fff RBX: ffffc900036efc00 RCX: 0000000000040000 RDX: ffffffffa00007e0 RSI: ffffc90003a2b050 RDI: ffffc900036efc00 RBP: ffffc900036ef8d0 R08: ffffffff842fb68d R09: ffffed1022e33289 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffc90003a2b030 R14: ffffffffa00007e0 R15: ffffc90003a2b050 FS: 00007f5bbbdd66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f675cc86d58 CR3: 0000000113ad9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __bpf_prog_run include/linux/filter.h:600 [inline] bpf_prog_run_xdp include/linux/filter.h:775 [inline] bpf_test_run+0x470/0xa40 net/bpf/test_run.c:400 bpf_prog_test_run_xdp+0x7a7/0x1130 net/bpf/test_run.c:1389 bpf_prog_test_run+0x3b0/0x630 kernel/bpf/syscall.c:3635 __sys_bpf+0x59f/0x7f0 kernel/bpf/syscall.c:4990 __do_sys_bpf kernel/bpf/syscall.c:5076 [inline] __se_sys_bpf kernel/bpf/syscall.c:5074 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5074 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5bbb07cae9 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:00007f5bbbdd60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f5bbb19bf80 RCX: 00007f5bbb07cae9 RDX: 0000000000000048 RSI: 0000000020000180 RDI: 000000000000000a RBP: 00007f5bbb0c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f5bbb19bf80 R15: 00007fffc28d7fb8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_dispatcher_xdp+0x814/0x1000 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 48 81 fa e0 07 00 a0 7f 17 48 81 fa e0 07 00 a0 0f 84 0a c7 ff ff e2 0f 1f 84 00 00 00 00 00 48 81 fa dc 08 00 a0 0f 84 ef RSP: 0018:ffffc900036ef8b0 EFLAGS: 00010286 RAX: ffffffff84119fff RBX: ffffc900036efc00 RCX: 0000000000040000 RDX: ffffffffa00007e0 RSI: ffffc90003a2b050 RDI: ffffc900036efc00 RBP: ffffc900036ef8d0 R08: ffffffff842fb68d R09: ffffed1022e33289 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffc90003a2b030 R14: ffffffffa00007e0 R15: ffffc90003a2b050 FS: 00007f5bbbdd66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f675cc86d58 CR3: 0000000113ad9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess), 1 bytes skipped: 14: 00 48 81 add %cl,-0x7f(%rax) 17: fa cli 18: e0 07 loopne 0x21 1a: 00 a0 7f 17 48 81 add %ah,-0x7eb7e881(%rax) 20: fa cli 21: e0 07 loopne 0x2a 23: 00 a0 0f 84 0a c7 add %ah,-0x38f57bf1(%rax) * 29: ff (bad) <-- trapping instruction 2a: ff (bad) 2b: ff e2 jmp *%rdx 2d: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 34: 00 35: 48 81 fa dc 08 00 a0 cmp $0xffffffffa00008dc,%rdx 3c: 0f .byte 0xf 3d: 84 ef test %ch,%bh