general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 3785 Comm: syz.1.1085 Not tainted 6.1.121-syzkaller-00998-g11620ab958c2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:dev_map_enqueue+0x31/0x340 kernel/bpf/devmap.c:532 Code: 56 41 55 41 54 53 48 83 ec 18 48 89 55 c0 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 36 fd dd ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 10 78 25 00 4c 8b 33 48 83 c3 20 RSP: 0000:ffffc90000b175f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888118c88000 RDX: 0000000000000000 RSI: ffff888116777070 RDI: 0000000000000000 RBP: ffffc90000b17638 R08: ffffffff8414edd2 R09: ffffffff8414ecf2 R10: 0000000000000004 R11: ffff888118c88000 R12: dffffc0000000000 R13: 1ffff1103edc6e15 R14: 1ffff1103edc6e15 R15: ffff888116777070 FS: 00007f81a5aad6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f81a5a8bf98 CR3: 000000011a433000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000020000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: <TASK> __xdp_do_redirect_frame net/core/filter.c:4310 [inline] xdp_do_redirect_frame+0x2b5/0x800 net/core/filter.c:4372 xdp_test_run_batch net/bpf/test_run.c:314 [inline] bpf_test_run_xdp_live+0xc30/0x1f70 net/bpf/test_run.c:362 bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1393 bpf_prog_test_run+0x3b0/0x630 kernel/bpf/syscall.c:3665 __sys_bpf+0x59f/0x7f0 kernel/bpf/syscall.c:5020 __do_sys_bpf kernel/bpf/syscall.c:5106 [inline] __se_sys_bpf kernel/bpf/syscall.c:5104 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5104 x64_sys_call+0x87f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f81a4b8cd29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f81a5aad038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f81a4da5fa0 RCX: 00007f81a4b8cd29 RDX: 0000000000000050 RSI: 00000000200000c0 RDI: 000000000000000a RBP: 00007f81a4c0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f81a4da5fa0 R15: 00007fffebc68e58 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dev_map_enqueue+0x31/0x340 kernel/bpf/devmap.c:532 Code: 56 41 55 41 54 53 48 83 ec 18 48 89 55 c0 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 36 fd dd ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 10 78 25 00 4c 8b 33 48 83 c3 20 RSP: 0000:ffffc90000b175f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888118c88000 RDX: 0000000000000000 RSI: ffff888116777070 RDI: 0000000000000000 RBP: ffffc90000b17638 R08: ffffffff8414edd2 R09: ffffffff8414ecf2 R10: 0000000000000004 R11: ffff888118c88000 R12: dffffc0000000000 R13: 1ffff1103edc6e15 R14: 1ffff1103edc6e15 R15: ffff888116777070 FS: 00007f81a5aad6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f81a5a8bf98 CR3: 000000011a433000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000020000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 56 push %rsi 1: 41 55 push %r13 3: 41 54 push %r12 5: 53 push %rbx 6: 48 83 ec 18 sub $0x18,%rsp a: 48 89 55 c0 mov %rdx,-0x40(%rbp) 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 36 fd dd ff call 0xffddfd59 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 10 78 25 00 call 0x257849 39: 4c 8b 33 mov (%rbx),%r14 3c: 48 83 c3 20 add $0x20,%rbx