==================================================================
BUG: KCSAN: data-race in __cgroup_account_cputime / cgroup_rstat_flush_locked

read-write to 0xffffe8ffffd860c8 of 8 bytes by task 3074 on cpu 1:
 __cgroup_account_cputime+0x44/0xa0 kernel/cgroup/rstat.c:415
 cgroup_account_cputime include/linux/cgroup.h:724 [inline]
 update_curr+0xf8/0x250 kernel/sched/fair.c:930
 task_fork_fair+0x58/0xc0 kernel/sched/fair.c:12101
 sched_cgroup_fork+0xe0/0x100 kernel/sched/core.c:4777
 copy_process+0x1494/0x2180 kernel/fork.c:2615
 kernel_clone+0x169/0x560 kernel/fork.c:2915
 __do_sys_clone kernel/fork.c:3058 [inline]
 __se_sys_clone kernel/fork.c:3042 [inline]
 __x64_sys_clone+0xe8/0x120 kernel/fork.c:3042
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffffe8ffffd860c8 of 8 bytes by task 3061 on cpu 0:
 cgroup_base_stat_flush kernel/cgroup/rstat.c:373 [inline]
 cgroup_rstat_flush_locked+0x2e1/0x700 kernel/cgroup/rstat.c:199
 cgroup_rstat_flush+0x2b/0x40 kernel/cgroup/rstat.c:239
 do_flush_stats mm/memcontrol.c:658 [inline]
 mem_cgroup_flush_stats+0x9f/0xd0 mm/memcontrol.c:672
 prepare_scan_count mm/vmscan.c:2915 [inline]
 shrink_node+0x2fa/0x1500 mm/vmscan.c:6500
 shrink_zones mm/vmscan.c:6737 [inline]
 do_try_to_free_pages+0x40d/0xc80 mm/vmscan.c:6799
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7114
 reclaim_high+0xca/0x110 mm/memcontrol.c:2432
 mem_cgroup_handle_over_high+0x8c/0x1a0 mm/memcontrol.c:2617
 try_charge_memcg+0xb35/0xd20 mm/memcontrol.c:2855
 obj_cgroup_charge_pages+0xab/0x130 mm/memcontrol.c:3138
 obj_cgroup_charge+0xe9/0x140 mm/memcontrol.c:3428
 memcg_slab_pre_alloc_hook mm/slab.h:464 [inline]
 slab_pre_alloc_hook+0x112/0x180 mm/slab.h:675
 slab_alloc_node mm/slab.c:3240 [inline]
 slab_alloc mm/slab.c:3265 [inline]
 __kmem_cache_alloc_lru mm/slab.c:3442 [inline]
 kmem_cache_alloc_lru+0x54/0x260 mm/slab.c:3458
 alloc_inode_sb include/linux/fs.h:2705 [inline]
 ext4_alloc_inode+0x38/0x320 fs/ext4/super.c:1377
 alloc_inode+0x38/0x150 fs/inode.c:260
 new_inode_pseudo fs/inode.c:1018 [inline]
 new_inode+0x24/0x130 fs/inode.c:1046
 __ext4_new_inode+0x13c/0x2290 fs/ext4/ialloc.c:958
 ext4_mkdir+0x27f/0x740 fs/ext4/namei.c:3012
 vfs_mkdir+0x1ac/0x2b0 fs/namei.c:4115
 do_mkdirat+0xf9/0x260 fs/namei.c:4138
 __do_sys_mkdirat fs/namei.c:4153 [inline]
 __se_sys_mkdirat fs/namei.c:4151 [inline]
 __x64_sys_mkdirat+0x50/0x60 fs/namei.c:4151
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000304369e77 -> 0x0000000304468033

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3061 Comm: syz-executor.1 Not tainted 6.4.0-rc5-syzkaller-00245-g64569520920a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
==================================================================