Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 9926 Comm: syz.4.1445 Not tainted 6.10.0-rc6-syzkaller-00169-gf0c180256937 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:bq_flush_to_queue+0x44/0x610 kernel/bpf/cpumap.c:674
Code: df e8 80 08 d7 ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 86 bd 3c 00 48 8b 2b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 1d 05 00 00 44 8b 65 00 4d 8d 6e 58 4c
RSP: 0018:ffffc9000990f680 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9400054 RCX: 0000000000040000
RDX: ffffc9000a5dc000 RSI: 0000000000000cae RDI: 0000000000000caf
RBP: 0000000000000000 R08: ffffffff81bf1df4 R09: 1ffffffff1f5a93d
R10: dffffc0000000000 R11: fffffbfff1f5a93e R12: ffffc9000990f948
R13: dffffc0000000000 R14: ffff8880b9400004 R15: dffffc0000000000
FS:  00007fc0083596c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000cf3d CR3: 0000000063786000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 __cpu_map_flush+0xa4/0x130 kernel/bpf/cpumap.c:765
 xdp_do_flush+0x13/0x20 net/core/filter.c:4277
 xdp_test_run_batch net/bpf/test_run.c:354 [inline]
 bpf_test_run_xdp_live+0x1682/0x1e60 net/bpf/test_run.c:384
 bpf_prog_test_run_xdp+0x80e/0x11b0 net/bpf/test_run.c:1281
 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4292
 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5706
 __do_sys_bpf kernel/bpf/syscall.c:5795 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5793 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5793
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc007575bd9
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:00007fc008359048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc007703f60 RCX: 00007fc007575bd9
RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
RBP: 00007fc0075e4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc007703f60 R15: 00007ffd7b9ba8f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bq_flush_to_queue+0x44/0x610 kernel/bpf/cpumap.c:674
Code: df e8 80 08 d7 ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 86 bd 3c 00 48 8b 2b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 1d 05 00 00 44 8b 65 00 4d 8d 6e 58 4c
RSP: 0018:ffffc9000990f680 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9400054 RCX: 0000000000040000
RDX: ffffc9000a5dc000 RSI: 0000000000000cae RDI: 0000000000000caf
RBP: 0000000000000000 R08: ffffffff81bf1df4 R09: 1ffffffff1f5a93d
R10: dffffc0000000000 R11: fffffbfff1f5a93e R12: ffffc9000990f948
R13: dffffc0000000000 R14: ffff8880b9400004 R15: dffffc0000000000
FS:  00007fc0083596c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000cf3d CR3: 0000000063786000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	df e8                	fucomip %st(0),%st
   2:	80 08 d7             	orb    $0xd7,(%rax)
   5:	ff 49 8d             	decl   -0x73(%rcx)
   8:	5e                   	pop    %rsi
   9:	50                   	push   %rax
   a:	48 89 d8             	mov    %rbx,%rax
   d:	48 c1 e8 03          	shr    $0x3,%rax
  11:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 86 bd 3c 00       	call   0x3cbda6
  20:	48 8b 2b             	mov    (%rbx),%rbp
  23:	48 89 e8             	mov    %rbp,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 1d 05 00 00    	jne    0x554
  37:	44 8b 65 00          	mov    0x0(%rbp),%r12d
  3b:	4d 8d 6e 58          	lea    0x58(%r14),%r13
  3f:	4c                   	rex.WR