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BUG: KCSAN: data-race in delete_from_page_cache_batch / folio_mapping

write to 0xffffea00055dfad8 of 8 bytes by task 5233 on cpu 0:
 page_cache_delete_batch mm/filemap.c:308 [inline]
 delete_from_page_cache_batch+0x32a/0x710 mm/filemap.c:334
 truncate_inode_pages_range+0x1bd/0x6a0 mm/truncate.c:359
 truncate_inode_pages mm/truncate.c:439 [inline]
 truncate_inode_pages_final+0x55/0x60 mm/truncate.c:474
 ext4_evict_inode+0x174/0xdc0 fs/ext4/inode.c:193
 evict+0x1aa/0x410 fs/inode.c:665
 iput_final fs/inode.c:1739 [inline]
 iput+0x42c/0x5c0 fs/inode.c:1765
 dentry_unlink_inode+0x22a/0x240 fs/dcache.c:400
 __dentry_kill+0x182/0x4a0 fs/dcache.c:603
 dput+0x54/0xc0 fs/dcache.c:845
 __fput+0x41d/0x630 fs/file_table.c:384
 ____fput+0x15/0x20 fs/file_table.c:404
 task_work_run+0x135/0x1a0 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x604/0x16d0 kernel/exit.c:871
 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]
 irqentry_exit_to_user_mode+0x9c/0x130 kernel/entry/common.c:225
 irqentry_exit+0x12/0x40 kernel/entry/common.c:328
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570

read to 0xffffea00055dfad8 of 8 bytes by task 5287 on cpu 1:
 folio_mapping+0x92/0x110 mm/util.c:782
 folio_evictable mm/internal.h:162 [inline]
 move_folios_to_lru+0x132/0x690 mm/vmscan.c:1801
 shrink_inactive_list mm/vmscan.c:1917 [inline]
 shrink_list mm/vmscan.c:2155 [inline]
 shrink_lruvec+0xd98/0x17a0 mm/vmscan.c:5681
 shrink_node_memcgs mm/vmscan.c:5867 [inline]
 shrink_node+0xac3/0x15d0 mm/vmscan.c:5902
 shrink_zones mm/vmscan.c:6141 [inline]
 do_try_to_free_pages+0x43d/0xce0 mm/vmscan.c:6203
 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:6518
 try_charge_memcg+0x280/0xd20 mm/memcontrol.c:2782
 try_charge mm/memcontrol.c:2930 [inline]
 charge_memcg mm/memcontrol.c:7276 [inline]
 __mem_cgroup_charge+0x63/0xf0 mm/memcontrol.c:7291
 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:2885
 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+0x1a8e/0x1bb0 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+0x9c/0x130 kernel/entry/common.c:225
 irqentry_exit+0x12/0x40 kernel/entry/common.c:328
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570

value changed: 0xffff888106b134d0 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 5287 Comm: syz-executor.2 Not tainted 6.8.0-rc5-syzkaller-00029-g39133352cbed #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
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syz-executor.2 (5287) used greatest stack depth: 8424 bytes left