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: 3636 Comm: syz-executor176 Not tainted 6.1.83-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:529 Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 3a 68 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 94 dd 36 00 4c 8b 75 00 48 83 c5 RSP: 0018:ffffc90003faf6d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880b9839298 RCX: ffff88807a6c0000 RDX: 0000000000000000 RSI: ffff888072a4b070 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff8889d41c R10: 0000000000000004 R11: ffff88807a6c0000 R12: dffffc0000000000 R13: ffff8880172e0000 R14: ffff8880b98392a8 R15: ffff888072a4b070 FS: 00005555556cc380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9d89e5e0d0 CR3: 0000000072a56000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __xdp_do_redirect_frame net/core/filter.c:4268 [inline] xdp_do_redirect_frame+0x2aa/0x540 net/core/filter.c:4330 xdp_test_run_batch net/bpf/test_run.c:314 [inline] bpf_test_run_xdp_live+0xbf4/0x1ea0 net/bpf/test_run.c:362 bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3670 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5023 __do_sys_bpf kernel/bpf/syscall.c:5109 [inline] __se_sys_bpf kernel/bpf/syscall.c:5107 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9d89de6fb9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcc2df9bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9d89de6fb9 RDX: 0000000000000048 RSI: 0000000020000340 RDI: 000000000000000a RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dev_map_enqueue+0x2d/0x340 kernel/bpf/devmap.c:529 Code: 41 56 41 55 41 54 53 48 83 ec 10 49 89 d5 49 89 f7 48 89 fd 49 bc 00 00 00 00 00 fc ff df e8 3a 68 df ff 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 94 dd 36 00 4c 8b 75 00 48 83 c5 RSP: 0018:ffffc90003faf6d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880b9839298 RCX: ffff88807a6c0000 RDX: 0000000000000000 RSI: ffff888072a4b070 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff8889d41c R10: 0000000000000004 R11: ffff88807a6c0000 R12: dffffc0000000000 R13: ffff8880172e0000 R14: ffff8880b98392a8 R15: ffff888072a4b070 FS: 00005555556cc380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9d89e5e0d0 CR3: 0000000072a56000 CR4: 00000000003506f0 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 10 sub $0x10,%rsp b: 49 89 d5 mov %rdx,%r13 e: 49 89 f7 mov %rsi,%r15 11: 48 89 fd mov %rdi,%rbp 14: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12 1b: fc ff df 1e: e8 3a 68 df ff call 0xffdf685d 23: 48 89 e8 mov %rbp,%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 ef mov %rbp,%rdi 34: e8 94 dd 36 00 call 0x36ddcd 39: 4c 8b 75 00 mov 0x0(%rbp),%r14 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c5 .byte 0xc5