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BUG: KCSAN: data-race in drain_all_stock / try_charge_memcg

write to 0xffff888237c2a690 of 4 bytes by task 14173 on cpu 0:
 consume_stock mm/memcontrol.c:2317 [inline]
 try_charge_memcg+0xb46/0xd20 mm/memcontrol.c:2723
 try_charge mm/memcontrol.c:2904 [inline]
 charge_memcg mm/memcontrol.c:7241 [inline]
 __mem_cgroup_charge+0x63/0xf0 mm/memcontrol.c:7256
 mem_cgroup_charge include/linux/memcontrol.h:690 [inline]
 __filemap_add_folio+0x135/0x730 mm/filemap.c:855
 filemap_add_folio+0x70/0x160 mm/filemap.c:938
 __filemap_get_folio+0x2f1/0x5a0 mm/filemap.c:1927
 ext4_da_write_begin+0x2eb/0x550 fs/ext4/inode.c:2891
 generic_perform_write+0x1c9/0x410 mm/filemap.c:3930
 ext4_buffered_write_iter+0x1f6/0x370 fs/ext4/file.c:299
 ext4_file_write_iter+0x297/0xe10
 __kernel_write_iter+0x25f/0x480 fs/read_write.c:523
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x25d/0x480 fs/coredump.c:915
 elf_core_dump+0x1a85/0x1ba0 fs/binfmt_elf.c:2077
 do_coredump+0x102a/0x1890 fs/coredump.c:764
 get_signal+0xdb5/0x10a0 kernel/signal.c:2879
 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 irqentry_exit_to_user_mode+0x98/0x130 kernel/entry/common.c:225
 irqentry_exit+0x12/0x40 kernel/entry/common.c:328
 exc_general_protection+0x339/0x4c0 arch/x86/kernel/traps.c:643
 asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564

read to 0xffff888237c2a690 of 4 bytes by task 14119 on cpu 1:
 drain_all_stock+0xd3/0x2e0 mm/memcontrol.c:2425
 try_charge_memcg+0x6c2/0xd20 mm/memcontrol.c:2770
 try_charge mm/memcontrol.c:2904 [inline]
 charge_memcg mm/memcontrol.c:7241 [inline]
 mem_cgroup_swapin_charge_folio+0x107/0x190 mm/memcontrol.c:7326
 __read_swap_cache_async+0x2b9/0x510 mm/swap_state.c:498
 swap_cluster_readahead+0x276/0x3f0 mm/swap_state.c:662
 swapin_readahead+0xe2/0x7a0 mm/swap_state.c:886
 do_swap_page+0x44c/0x1570 mm/memory.c:3898
 handle_pte_fault mm/memory.c:5147 [inline]
 __handle_mm_fault mm/memory.c:5285 [inline]
 handle_mm_fault+0x7f6/0x27b0 mm/memory.c:5450
 do_user_addr_fault arch/x86/mm/fault.c:1415 [inline]
 handle_page_fault arch/x86/mm/fault.c:1507 [inline]
 exc_page_fault+0x2f7/0x6d0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
 __put_user_4+0x11/0x20 arch/x86/lib/putuser.S:86
 mm_release+0x93/0x1e0 kernel/fork.c:1633
 exit_mm_release+0x25/0x30 kernel/fork.c:1651
 exit_mm+0x37/0x180 kernel/exit.c:542
 do_exit+0x585/0x16d0 kernel/exit.c:858
 do_group_exit+0x101/0x150 kernel/exit.c:1020
 get_signal+0xf4e/0x10a0 kernel/signal.c:2893
 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
 syscall_exit_to_user_mode+0x57/0x130 kernel/entry/common.c:212
 do_syscall_64+0x65/0x120 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000003a -> 0x00000036

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 14119 Comm: syz-executor.5 Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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