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: 19592 Comm: syz.4.4791 Not tainted 6.1.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:bq_flush_to_queue+0x44/0x600 kernel/bpf/cpumap.c:713
Code: df e8 d0 cb de ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 c6 46 36 00 48 8b 2b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 19 05 00 00 44 8b 65 00 4d 8d 6e 58 4c
RSP: 0018:ffffc900039b76b8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9800050 RCX: 0000000000040000
RDX: ffffc900192d9000 RSI: 0000000000001118 RDI: 0000000000001119
RBP: 0000000000000000 R08: ffffffff81abd6c2 R09: ffffed100f8c86b2
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 00000000ffffffff R14: ffff8880b9800000 R15: dffffc0000000000
FS:  00007f7d4bd346c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89ed54d6c0 CR3: 000000004ae0c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 __cpu_map_flush+0xa5/0x130 kernel/bpf/cpumap.c:804
 xdp_do_flush+0xf/0x20 net/core/filter.c:4183
 xdp_test_run_batch net/bpf/test_run.c:332 [inline]
 bpf_test_run_xdp_live+0x1650/0x1ea0 net/bpf/test_run.c:362
 bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1393
 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3685
 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5038
 __do_sys_bpf kernel/bpf/syscall.c:5124 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5122 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5122
 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: 0033:0x7f7d4af79e79
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:00007f7d4bd34038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f7d4b115f80 RCX: 00007f7d4af79e79
RDX: 0000000000000050 RSI: 00000000200000c0 RDI: 000000000000000a
RBP: 00007f7d4afe793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7d4b115f80 R15: 00007ffccb521388
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bq_flush_to_queue+0x44/0x600 kernel/bpf/cpumap.c:713
Code: df e8 d0 cb de ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 c6 46 36 00 48 8b 2b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 19 05 00 00 44 8b 65 00 4d 8d 6e 58 4c
RSP: 0018:ffffc900039b76b8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880b9800050 RCX: 0000000000040000
RDX: ffffc900192d9000 RSI: 0000000000001118 RDI: 0000000000001119
RBP: 0000000000000000 R08: ffffffff81abd6c2 R09: ffffed100f8c86b2
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 00000000ffffffff R14: ffff8880b9800000 R15: dffffc0000000000
FS:  00007f7d4bd346c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89ed54d6c0 CR3: 000000004ae0c000 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:	d0 cb                	ror    %bl
   4:	de ff                	fdivrp %st,%st(7)
   6:	49 8d 5e 50          	lea    0x50(%r14),%rbx
   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 c6 46 36 00       	call   0x3646e6
  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 19 05 00 00    	jne    0x550
  37:	44 8b 65 00          	mov    0x0(%rbp),%r12d
  3b:	4d 8d 6e 58          	lea    0x58(%r14),%r13
  3f:	4c                   	rex.WR