BUG: unable to handle page fault for address: ffffffff09d51812 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD ce91067 P4D ce91067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10399 Comm: syz-executor.4 Not tainted 6.1.56-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:bpf_dispatcher_xdp+0x812/0x1000 Code: 00 00 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 ac 08 00 a0 0f 8f 63 00 00 00 48 81 fa 24 08 <00> a0 7f 2a 48 81 fa e4 07 00 a0 7f 11 48 81 fa e4 07 00 a0 0f 84 RSP: 0018:ffffc900065f7978 EFLAGS: 00010246 RAX: ffffffff888ced93 RBX: ffffc900065f7a60 RCX: 0000000000040000 RDX: ffffffffa0000824 RSI: ffffc90006873048 RDI: ffffc900065f7c80 RBP: ffffc900065f7b70 R08: ffffffff88bd38a7 R09: ffffed1004418771 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffc90006873030 R14: 0000000000000000 R15: ffffc900065f7c60 FS: 00007f3e7e5fe6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff09d51812 CR3: 0000000021fd6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: bpf_prog_test_run_xdp+0x7a7/0x1130 net/bpf/test_run.c:1389 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3633 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:4986 __do_sys_bpf kernel/bpf/syscall.c:5072 [inline] __se_sys_bpf kernel/bpf/syscall.c:5070 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5070 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: 0033:0x7f3e7fa7cae9 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:00007f3e7e5fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f3e7fb9bf80 RCX: 00007f3e7fa7cae9 RDX: 0000000000000048 RSI: 0000000020001480 RDI: 000000000000000a RBP: 00007f3e7fac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f3e7fb9bf80 R15: 00007ffd0c217dd8 Modules linked in: CR2: ffffffff09d51812 ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_dispatcher_xdp+0x812/0x1000 Code: 00 00 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 ac 08 00 a0 0f 8f 63 00 00 00 48 81 fa 24 08 <00> a0 7f 2a 48 81 fa e4 07 00 a0 7f 11 48 81 fa e4 07 00 a0 0f 84 RSP: 0018:ffffc900065f7978 EFLAGS: 00010246 RAX: ffffffff888ced93 RBX: ffffc900065f7a60 RCX: 0000000000040000 RDX: ffffffffa0000824 RSI: ffffc90006873048 RDI: ffffc900065f7c80 RBP: ffffc900065f7b70 R08: ffffffff88bd38a7 R09: ffffed1004418771 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffc90006873030 R14: 0000000000000000 R15: ffffc900065f7c60 FS: 00007f3e7e5fe6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff09d51812 CR3: 0000000021fd6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess), 1 bytes skipped: 14: 00 00 add %al,(%rax) 16: 00 48 81 add %cl,-0x7f(%rax) 19: fa cli 1a: ac lods %ds:(%rsi),%al 1b: 08 00 or %al,(%rax) 1d: a0 0f 8f 63 00 00 00 movabs 0x8148000000638f0f,%al 24: 48 81 26: fa cli 27: 24 08 and $0x8,%al * 29: 00 a0 7f 2a 48 81 add %ah,-0x7eb7d581(%rax) <-- trapping instruction 2f: fa cli 30: e4 07 in $0x7,%al 32: 00 a0 7f 11 48 81 add %ah,-0x7eb7ee81(%rax) 38: fa cli 39: e4 07 in $0x7,%al 3b: 00 .byte 0x0 3c: a0 .byte 0xa0 3d: 0f .byte 0xf 3e: 84 .byte 0x84