general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 392 Comm: syz-executor.0 Tainted: G W 6.9.0-rc3-syzkaller-00023-g2c71fdf02a95 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:dev_map_enqueue+0x30/0x3d0 kernel/bpf/devmap.c:539 Code: 41 56 41 55 41 54 53 48 83 ec 18 49 89 d5 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 d7 28 d7 ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 a1 2b 28 00 4c 8b 33 48 83 c3 18 RSP: 0018:ffffc90002f17608 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881063c0000 RDX: 0000000000000000 RSI: ffff888108757070 RDI: 0000000000000000 RBP: ffffc90002f17648 R08: 0000000000000005 R09: ffffffff84416275 R10: 0000000000000004 R11: ffff8881063c0000 R12: dffffc0000000000 R13: ffff888105e50000 R14: ffff8881f7138658 R15: ffff888108757070 FS: 00007fca5a4806c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020282000 CR3: 0000000107b40000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __xdp_do_redirect_frame net/core/filter.c:4384 [inline] xdp_do_redirect_frame+0x1e2/0x700 net/core/filter.c:4438 xdp_test_run_batch net/bpf/test_run.c:336 [inline] bpf_test_run_xdp_live+0xf59/0x2060 net/bpf/test_run.c:384 bpf_prog_test_run_xdp+0x80f/0x11b0 net/bpf/test_run.c:1267 bpf_prog_test_run+0x3bb/0x640 kernel/bpf/syscall.c:4269 __sys_bpf+0x483/0x820 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5765 x64_sys_call+0x866/0x2cd0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x54/0x120 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fca5967dda9 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:00007fca5a4800c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fca597abf80 RCX: 00007fca5967dda9 RDX: 0000000000000048 RSI: 0000000020000340 RDI: 000000000000000a RBP: 00007fca596ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fca597abf80 R15: 00007fff890c0b48 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dev_map_enqueue+0x30/0x3d0 kernel/bpf/devmap.c:539 Code: 41 56 41 55 41 54 53 48 83 ec 18 49 89 d5 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 d7 28 d7 ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 a1 2b 28 00 4c 8b 33 48 83 c3 18 RSP: 0018:ffffc90002f17608 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881063c0000 RDX: 0000000000000000 RSI: ffff888108757070 RDI: 0000000000000000 RBP: ffffc90002f17648 R08: 0000000000000005 R09: ffffffff84416275 R10: 0000000000000004 R11: ffff8881063c0000 R12: dffffc0000000000 R13: ffff888105e50000 R14: ffff8881f7138658 R15: ffff888108757070 FS: 00007fca5a4806c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020282000 CR3: 0000000107b40000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 41 56 push %r14 2: 41 55 push %r13 4: 41 54 push %r12 6: 53 push %rbx 7: 48 83 ec 18 sub $0x18,%rsp b: 49 89 d5 mov %rdx,%r13 e: 49 89 f7 mov %rsi,%r15 11: 48 89 fb mov %rdi,%rbx 14: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12 1b: fc ff df 1e: e8 d7 28 d7 ff call 0xffd728fa 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 a1 2b 28 00 call 0x282bda 39: 4c 8b 33 mov (%rbx),%r14 3c: 48 83 c3 18 add $0x18,%rbx