general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 10150 Comm: syz.3.3469 Not tainted 6.1.84-syzkaller-00009-gc78828e3832d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:bq_flush_to_queue+0x47/0x6e0 kernel/bpf/cpumap.c:713 Code: df e8 6d 8d dd ff 49 8d 5f 50 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 03 9a 24 00 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 cd 04 00 00 48 89 5d 80 44 8b 33 4d 8d RSP: 0018:ffffc90000c27618 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90002cd7000 RSI: 0000000000000117 RDI: 0000000000000118 RBP: ffffc90000c276a8 R08: ffffffff8197f738 R09: ffffffff841267d5 R10: 0000000000000004 R11: ffff888114d23cc0 R12: dffffc0000000000 R13: ffff8881f7134440 R14: ffff8881f7134440 R15: ffff8881f7100000 FS: 00007f5f60b4f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5f5ff00100 CR3: 00000001407b1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __cpu_map_flush+0xab/0x130 kernel/bpf/cpumap.c:804 xdp_do_flush+0x13/0x20 net/core/filter.c:4168 xdp_test_run_batch net/bpf/test_run.c:332 [inline] bpf_test_run_xdp_live+0x167d/0x1f70 net/bpf/test_run.c:362 bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387 bpf_prog_test_run+0x3b0/0x630 kernel/bpf/syscall.c:3650 __sys_bpf+0x59f/0x7f0 kernel/bpf/syscall.c:5005 __do_sys_bpf kernel/bpf/syscall.c:5091 [inline] __se_sys_bpf kernel/bpf/syscall.c:5089 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5089 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: 0033:0x7f5f5fd75ad9 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:00007f5f60b4f048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f5f5ff04038 RCX: 00007f5f5fd75ad9 RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a RBP: 00007f5f5fde4e5d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f5f5ff04038 R15: 00007ffd0fa56998 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bq_flush_to_queue+0x47/0x6e0 kernel/bpf/cpumap.c:713 Code: df e8 6d 8d dd ff 49 8d 5f 50 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 03 9a 24 00 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 cd 04 00 00 48 89 5d 80 44 8b 33 4d 8d RSP: 0018:ffffc90000c27618 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90002cd7000 RSI: 0000000000000117 RDI: 0000000000000118 RBP: ffffc90000c276a8 R08: ffffffff8197f738 R09: ffffffff841267d5 R10: 0000000000000004 R11: ffff888114d23cc0 R12: dffffc0000000000 R13: ffff8881f7134440 R14: ffff8881f7134440 R15: ffff8881f7100000 FS: 00007f5f60b4f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5f5ff00100 CR3: 00000001407b1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e8 6d 8d dd ff call 0xffdd8d72 5: 49 8d 5f 50 lea 0x50(%r15),%rbx 9: 48 89 d8 mov %rbx,%rax c: 48 c1 e8 03 shr $0x3,%rax 10: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) 15: 74 08 je 0x1f 17: 48 89 df mov %rbx,%rdi 1a: e8 03 9a 24 00 call 0x249a22 1f: 48 8b 1b mov (%rbx),%rbx 22: 48 89 d8 mov %rbx,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 cd 04 00 00 jne 0x503 36: 48 89 5d 80 mov %rbx,-0x80(%rbp) 3a: 44 8b 33 mov (%rbx),%r14d 3d: 4d rex.WRB 3e: 8d .byte 0x8d