==================================================================
BUG: KCSAN: data-race in __filemap_remove_folio / folio_mapping

write to 0xffffea0005951058 of 8 bytes by task 18048 on cpu 0:
 page_cache_delete mm/filemap.c:143 [inline]
 __filemap_remove_folio+0x1b8/0x2d0 mm/filemap.c:223
 filemap_remove_folio+0x6c/0x1f0 mm/filemap.c:255
 truncate_inode_folio+0x42/0x50 mm/truncate.c:195
 shmem_undo_range+0x256/0xa40 mm/shmem.c:1001
 shmem_truncate_range mm/shmem.c:1114 [inline]
 shmem_evict_inode+0x14d/0x530 mm/shmem.c:1242
 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
 get_signal+0xf04/0x10a0 kernel/signal.c:2669
 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+0x58/0x130 kernel/entry/common.c:212
 do_syscall_64+0xda/0x1d0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffffea0005951058 of 8 bytes by task 18043 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
 obj_cgroup_charge_pages+0xbd/0x1c0 mm/memcontrol.c:3301
 __memcg_kmem_charge_page+0x9c/0x170 mm/memcontrol.c:3327
 __alloc_pages+0x1bb/0x340 mm/page_alloc.c:4584
 alloc_pages_mpol+0xb1/0x1d0 mm/mempolicy.c:2133
 alloc_pages+0xe0/0x100 mm/mempolicy.c:2204
 vm_area_alloc_pages mm/vmalloc.c:3063 [inline]
 __vmalloc_area_node mm/vmalloc.c:3139 [inline]
 __vmalloc_node_range+0x6ee/0xec0 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/arp_tables.c:970 [inline]
 do_arpt_set_ctl+0x634/0x13c0 net/ipv4/netfilter/arp_tables.c:1421
 nf_setsockopt+0x18d/0x1b0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0xe6/0x100 net/ipv4/ip_sockglue.c:1420
 tcp_setsockopt+0x90/0xa0 net/ipv4/tcp.c:3734
 sock_common_setsockopt+0x61/0x70 net/core/sock.c:3716
 do_sock_setsockopt net/socket.c:2311 [inline]
 __sys_setsockopt+0x1d4/0x240 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_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0xffff8881040e9c68 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 18043 Comm: syz-executor.3 Not tainted 6.8.0-rc4-syzkaller-00180-g4f5e5092fdbf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
==================================================================
syz-executor.3 (18043) used greatest stack depth: 9592 bytes left