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BUG: KCSAN: data-race in delete_from_page_cache_batch / folio_mapping

write to 0xffffea00049701d8 of 8 bytes by task 8633 on cpu 1:
 page_cache_delete_batch mm/filemap.c:308 [inline]
 delete_from_page_cache_batch+0x32a/0x720 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+0x174/0xdd0 fs/ext4/inode.c:193
 evict+0x1ae/0x420 fs/inode.c:667
 iput_final fs/inode.c:1741 [inline]
 iput+0x432/0x5c0 fs/inode.c:1767
 dentry_unlink_inode+0x230/0x240 fs/dcache.c:400
 __dentry_kill+0x188/0x4b0 fs/dcache.c:603
 dput+0x5c/0xd0 fs/dcache.c:845
 __fput+0x423/0x640 fs/file_table.c:431
 ____fput+0x15/0x20 fs/file_table.c:451
 task_work_run+0x13a/0x1a0 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x5fd/0x1740 kernel/exit.c:878
 do_group_exit+0x102/0x150 kernel/exit.c:1027
 get_signal+0xf53/0x10a0 kernel/signal.c:2907
 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+0x94/0x130 kernel/entry/common.c:225
 irqentry_exit+0x12/0x50 kernel/entry/common.c:328
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

read to 0xffffea00049701d8 of 8 bytes by task 8698 on cpu 0:
 folio_mapping+0x96/0x110 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+0xd82/0x1790 mm/vmscan.c:5681
 shrink_node_memcgs mm/vmscan.c:5867 [inline]
 shrink_node+0xaa9/0x15e0 mm/vmscan.c:5902
 shrink_zones mm/vmscan.c:6144 [inline]
 do_try_to_free_pages+0x3f2/0xd00 mm/vmscan.c:6206
 try_to_free_mem_cgroup_pages+0x1e3/0x490 mm/vmscan.c:6521
 try_charge_memcg+0x279/0xd10 mm/memcontrol.c:2782
 obj_cgroup_charge_pages+0xbd/0x1d0 mm/memcontrol.c:3301
 __memcg_kmem_charge_page+0x9d/0x170 mm/memcontrol.c:3327
 __alloc_pages+0x1bc/0x340 mm/page_alloc.c:4586
 alloc_pages_mpol+0xb1/0x1e0 mm/mempolicy.c:2133
 alloc_pages+0xe1/0x100 mm/mempolicy.c:2204
 vm_area_alloc_pages mm/vmalloc.c:3063 [inline]
 __vmalloc_area_node mm/vmalloc.c:3139 [inline]
 __vmalloc_node_range+0x6ef/0xed0 mm/vmalloc.c:3320
 kvmalloc_node+0x121/0x170 mm/util.c:642
 kvmalloc include/linux/slab.h:728 [inline]
 xt_alloc_table_info+0x3d/0x80 net/netfilter/x_tables.c:1192
 do_replace net/ipv4/netfilter/ip_tables.c:1122 [inline]
 do_ipt_set_ctl+0x63b/0x1740 net/ipv4/netfilter/ip_tables.c:1627
 nf_setsockopt+0x195/0x1b0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0xea/0x100 net/ipv4/ip_sockglue.c:1420
 raw_setsockopt+0x101/0x150 net/ipv4/raw.c:834
 sock_common_setsockopt+0x64/0x80 net/core/sock.c:3715
 do_sock_setsockopt net/socket.c:2311 [inline]
 __sys_setsockopt+0x1d8/0x250 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __x64_sys_setsockopt+0x66/0x80 net/socket.c:2340
 do_syscall_64+0xd3/0x1d0
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

value changed: 0xffff8881082a6bb0 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 8698 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-01185-g855684c7d938 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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