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: 5766 Comm: syz.4.146 Not tainted 6.11.0-rc1-syzkaller-00004-gdc1c8034e31b #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 56 eb 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: ffff88802135c290 RCX: ffff8880201d8000
RDX: 0000000080000100 RSI: 0000000000000010 RDI: ffff88802135c240
RBP: 0000000000000000 R08: ffffffff8985908a R09: 1ffffffff1feced5
R10: dffffc0000000000 R11: fffffbfff1feced6 R12: 0000000000000001
R13: ffffc900163a7820 R14: ffff88802135c240 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3d9f76 CR3: 000000000e534000 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:obj_cgroup_put include/linux/memcontrol.h:802 [inline]
RIP: 0010:mod_objcg_state+0x5d9/0x930 mm/memcontrol.c:2780
Code: 3c 23 00 74 08 4c 89 f7 e8 34 c1 f7 ff f6 84 24 81 00 00 00 02 0f 85 89 00 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 8b 7c 24 28 <48> 85 ff 74 05 e8 1d 8f 00 00 48 c7 44 24 60 0e 36 e0 45 48 8b 44
RSP: 0018:ffffc900163a75e0 EFLAGS: 00000206
RAX: 725562b5882c3e00 RBX: 1ffff92002c74ecc RCX: ffffffff81701d7a
RDX: dffffc0000000000 RSI: ffffffff8bead520 RDI: 0000000000000000
RBP: ffffc900163a7700 R08: ffffffff934eb837 R09: 1ffffffff269d706
R10: dffffc0000000000 R11: fffffbfff269d707 R12: dffffc0000000000
R13: 0000000000000058 R14: ffffc900163a7660 R15: 0000000000000246
 __memcg_slab_free_hook+0x9f/0x310 mm/memcontrol.c:3048
 memcg_slab_free_hook mm/slub.c:2186 [inline]
 slab_free mm/slub.c:4470 [inline]
 kmem_cache_free+0x1cf/0x350 mm/slub.c:4548
 vma_lock_free kernel/fork.c:457 [inline]
 __vm_area_free+0xe0/0x110 kernel/fork.c:513
 remove_vma mm/mmap.c:187 [inline]
 exit_mmap+0x645/0xc80 mm/mmap.c:3436
 __mmput+0x115/0x380 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x27f0 kernel/exit.c:869
 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: 0033:0x7f5d2df77299
Code: Unable to access opcode bytes at 0x7f5d2df7726f.
RSP: 002b:00007f5d2ede60f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5d2e106060 RCX: 00007f5d2df77299
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5d2e106060
RBP: 00007f5d2e106058 R08: 00007f5d2ede66c0 R09: 00007f5d2ede66c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d2e106064
R13: 000000000000006e R14: 00007ffc42c04f40 R15: 00007ffc42c05028
 </TASK>
Modules linked in:
---[ 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 56 eb 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: ffff88802135c290 RCX: ffff8880201d8000
RDX: 0000000080000100 RSI: 0000000000000010 RDI: ffff88802135c240
RBP: 0000000000000000 R08: ffffffff8985908a R09: 1ffffffff1feced5
R10: dffffc0000000000 R11: fffffbfff1feced6 R12: 0000000000000001
R13: ffffc900163a7820 R14: ffff88802135c240 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3d9f76 CR3: 000000000e534000 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 56 eb 3a 00       	call   0x3aeb76
  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