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 UID: 0 PID: 9129 Comm: syz.2.1214 Not tainted 6.10.0-syzkaller-12708-g2f8c4f506285 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:bq_flush_to_queue+0x44/0x610 kernel/bpf/cpumap.c:675
Code: df e8 40 d8 d6 ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 36 ed 3a 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:ffffc90000007a80 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88802b2e1830 RCX: ffff888020d30000
RDX: 0000000080000101 RSI: 0000000000000000 RDI: ffff88802b2e17e0
RBP: 0000000000000000 R08: ffffffff898562fa R09: 1ffffffff1fecdfd
R10: dffffc0000000000 R11: fffffbfff1fecdfe R12: ffffffff94e84aa0
R13: ffffc900042477c0 R14: ffff88802b2e17e0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b69c83fa8 CR3: 0000000023562000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __cpu_map_flush+0x5d/0xd0 kernel/bpf/cpumap.c:767
 xdp_do_check_flushed+0x136/0x240 net/core/filter.c:4311
 __napi_poll+0xe4/0x490 net/core/dev.c:6774
 napi_poll net/core/dev.c:6840 [inline]
 net_rx_action+0x89b/0x1240 net/core/dev.c:6962
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 common_interrupt+0xaa/0xd0 arch/x86/kernel/irq.c:278
 </IRQ>
 <TASK>
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763
Code: 2b 00 74 08 4c 89 f7 e8 8a ea 87 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900042477e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000848f08 RCX: 5a8e86547a3c9100
RDX: dffffc0000000000 RSI: ffffffff8beae720 RDI: ffffffff8c3f9560
RBP: ffffc90004247938 R08: ffffffff934e98d7 R09: 1ffffffff269d31a
R10: dffffc0000000000 R11: fffffbfff269d31b R12: 1ffff92000848f04
R13: dffffc0000000000 R14: ffffc90004247840 R15: 0000000000000246
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 exit_sem+0x2ad/0x1a00
 do_exit+0xa00/0x27f0 kernel/exit.c:875
 do_group_exit+0x207/0x2c0 kernel/exit.c:1031
 get_signal+0x1695/0x1730 kernel/signal.c:2917
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5c80577299
Code: Unable to access opcode bytes at 0x7f5c8057726f.
RSP: 002b:00007f5c813440f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5c80705f88 RCX: 00007f5c80577299
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5c80705f88
RBP: 00007f5c80705f80 R08: 00007f5c813446c0 R09: 00007f5c813446c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5c80705f8c
R13: 000000000000000b R14: 00007ffe095c00b0 R15: 00007ffe095c0198
 </TASK>
Modules linked in:
vkms_vblank_simulate: vblank timer overrun
---[ end trace 0000000000000000 ]---
RIP: 0010:bq_flush_to_queue+0x44/0x610 kernel/bpf/cpumap.c:675
Code: df e8 40 d8 d6 ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 36 ed 3a 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:ffffc90000007a80 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88802b2e1830 RCX: ffff888020d30000
RDX: 0000000080000101 RSI: 0000000000000000 RDI: ffff88802b2e17e0
RBP: 0000000000000000 R08: ffffffff898562fa R09: 1ffffffff1fecdfd
R10: dffffc0000000000 R11: fffffbfff1fecdfe R12: ffffffff94e84aa0
R13: ffffc900042477c0 R14: ffff88802b2e17e0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b69c83fa8 CR3: 0000000023562000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	df e8                	fucomip %st(0),%st
   2:	40 d8 d6             	rex fcom %st(6)
   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 36 ed 3a 00       	call   0x3aed56
  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