【openEuler-1.0-LTS 】kasan: GPF could be caused by NULL-ptr deref or user memory access

【标题描述】能够简要描述问题：说明什么场景下，做了什么操作，出现什么问题（尽量使用正向表达方式）
【环境信息】
硬件信息：
x86 qemu
软件信息：
CONFIG_QOS_SCHED_SMART_GRID=y
打开死锁检测配置

如果有特殊组网，请提供网络拓扑图
【问题复现步骤】
case1:
mkdir /sys/fs/cgroup/cpu/test
case2:
isolcpus=0-14 [total 0-15]
cat /sys/fs/cgroup/cpu/cpu.affinity_stat

出现概率(是否必现，概率性错误) 必现
【预期结果】
系统无异常信息
【实际结果】
1.
[root@localhost ~]# cat /sys/fs/cgroup/cpu/cpu.affinity_stat
[  135.727958] kasan: CONFIG_KASAN_INLINE enabled
[  135.729380] kasan: GPF could be caused by NULL-ptr deref or user memory access
[  135.746237] general protection fault: 0000 [#1] PREEMPT SMP KASAN PTI
[  135.748056] CPU: 15 PID: 2001 Comm: cat Kdump: loaded Not tainted 4.19.90+ #220
[  135.750030] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014
[  135.753119] RIP: 0010:cpu_affinity_stat_show+0x86/0x330
[  135.754532] Code: 03 80 3c 11 00 0f 85 46 02 00 00 4c 8b b0 e0 03 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d be 98 00 00 00 48 89 fa 48 c1 ea 03 <0f> b0
[  135.759541] RSP: 0018:ffff88800c407a88 EFLAGS: 00010202
[  135.760950] RAX: dffffc0000000000 RBX: ffffffffa10e6478 RCX: 1ffffffff4432894
[  135.762853] RDX: 0000000000000013 RSI: 0000000000000001 RDI: 0000000000000098
[  135.764808] RBP: ffffffff9ddac620 R08: ffffed100056f9a6 R09: ffffed100056f9a6
[  135.766723] R10: 0000000000000001 R11: ffffed100056f9a5 R12: ffff88800ad60008
[  135.768675] R13: ffffffffa21940c0 R14: 0000000000000000 R15: ffffffffa0918640
[  135.770594] FS:  00007f4d8df6b540(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000
[  135.772778] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  135.774332] CR2: 00007f8e25d8c4c0 CR3: 000000000d348000 CR4: 00000000000006e0
[  135.776276] Call Trace:
[  135.776978]  ? cpu_extra_stat_show+0x120/0x120
[  135.778198]  cgroup_seqfile_show+0x1a9/0x2f0
[  135.779387]  seq_read+0x307/0xff0
[  135.780317]  kernfs_fop_read+0x3bc/0x530
[  135.781395]  ? kernfs_fop_write+0x430/0x430
[  135.782538]  __vfs_read+0xef/0x670
[  135.783486]  ? fsnotify+0x690/0xd20
[  135.784524]  ? __x64_sys_copy_file_range+0x4b0/0x4b0
[  135.785877]  ? fsnotify_first_mark+0x180/0x180
[  135.787090]  ? sched_clock_cpu+0x18/0x1b0
[  135.788214]  ? debug_show_all_locks+0x2d0/0x2d0
[  135.789443]  ? sched_clock_cpu+0x18/0x1b0
[  135.790537]  ? _raw_spin_unlock+0x2e/0x50
[  135.791651]  ? security_file_permission+0x172/0x1e0
[  135.792972]  ? security_file_permission+0x17f/0x1e0
[  135.794301]  vfs_read+0x129/0x340
[  135.795220]  ksys_read+0x10d/0x260
[  135.796168]  ? kernel_write+0x110/0x110
[  135.797240]  ? __audit_syscall_entry+0x33e/0x4b0
[  135.798498]  do_syscall_64+0xfb/0xec0
[  135.799532]  ? check_preemption_disabled+0x34/0x1f0
[  135.800853]  ? syscall_return_slowpath+0x360/0x360
[  135.802152]  ? lockdep_hardirqs_off+0x1cb/0x2b0
[  135.803391]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xd6
[  135.804815]  ? trace_hardirqs_off_caller+0x59/0x1a0
[  135.806144]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  135.807457]  entry_SYSCALL_64_after_hwframe+0x61/0xd6

2.
kasan: CONFIG_KASAN_INLINE enabled
[17713.452488] kasan: GPF could be caused by NULL-ptr deref or user memory access
[17713.456024] general protection fault: 0000 [#1] PREEMPT SMP KASAN PTI
[17713.457897] CPU: 0 PID: 2605 Comm: mkdir Kdump: loaded Tainted: G        W         4.19.90+ #219
[17713.460365] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014
[17713.463600] RIP: 0010:destroy_auto_affinity.isra.22+0x53/0x210
[17713.465248] Code: 89 7c 24 08 0f 85 94 01 00 00 48 8b 44 24 08 48 8b 28 48 b8 00 00 00 00 00 fc ff df 48 8d bd 98 00 00 00 48 89 fa 48 c1 ea 03 <0f> b0
[17713.470476] RSP: 0018:ffff888025dffb78 EFLAGS: 00010202
[17713.471955] RAX: dffffc0000000000 RBX: ffff888038608040 RCX: ffffffffb334b804
[17713.473969] RDX: 0000000000000013 RSI: ffffffffb4e6a5a0 RDI: 0000000000000098
[17713.475966] RBP: 0000000000000000 R08: fffffbfff6b25989 R09: 0000000000000000
[17713.477988] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffb573ee28
[17713.479990] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88800679e728
[17713.482005] FS:  00007f9894f56040(0000) GS:ffff88806b200000(0000) knlGS:0000000000000000
[17713.484265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[17713.485890] CR2: 00007fb0f6e80690 CR3: 000000000e90e000 CR4: 00000000000006f0
[17713.487886] Call Trace:
[17713.488620]  alloc_fair_sched_group+0x105/0x550
[17713.489938]  ? rcu_read_lock_sched_held+0x114/0x130
[17713.491342]  ? kmem_cache_alloc+0x247/0x270
[17713.492546]  sched_create_group+0x35/0x70
[17713.493708]  cpu_cgroup_css_alloc+0x16/0x30
[17713.494905]  cgroup_apply_control_enable+0x3bb/0xb70
[17713.496316]  ? css_populate_dir+0x27a/0x450
[17713.497523]  cgroup_mkdir+0x4d5/0xdd0
[17713.498581]  ? generic_permission+0x101/0x3c0
[17713.499824]  ? cgroup_destroy_locked+0x6c0/0x6c0
[17713.501139]  kernfs_iop_mkdir+0x154/0x1e0
[17713.502314]  vfs_mkdir+0x380/0x570
[17713.503301]  do_mkdirat+0x121/0x220
[17713.504375]  ? __x64_sys_mknod+0xb0/0xb0
[17713.505516]  ? __audit_syscall_entry+0x33e/0x4b0
[17713.506837]  do_syscall_64+0xfb/0xec0
[17713.507892]  ? check_preemption_disabled+0x34/0x1f0
[17713.509277]  ? syscall_return_slowpath+0x360/0x360
[17713.510677]  ? lockdep_hardirqs_off+0x1cb/0x2b0
[17713.511976]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xd6
[17713.513473]  ? trace_hardirqs_off_caller+0x59/0x1a0
[17713.514858]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[17713.516202]  entry_SYSCALL_64_after_hwframe+0x61/0xd6
【附件信息】
比如系统message日志/组件日志、dump信息、图片等

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