================================================================== BUG: KCSAN: data-race in delete_from_page_cache_batch / folio_mapping write to 0xffffea00056499d8 of 8 bytes by task 937 on cpu 1: page_cache_delete_batch mm/filemap.c:307 [inline] delete_from_page_cache_batch+0x32a/0x710 mm/filemap.c:333 truncate_inode_pages_range+0x1bd/0x6a0 mm/truncate.c:368 truncate_inode_pages mm/truncate.c:448 [inline] truncate_inode_pages_final+0x55/0x60 mm/truncate.c:483 ext4_evict_inode+0x174/0xdc0 fs/ext4/inode.c:193 evict+0x1aa/0x410 fs/inode.c:666 iput_final fs/inode.c:1777 [inline] iput+0x42c/0x5b0 fs/inode.c:1803 dentry_unlink_inode+0x22a/0x240 fs/dcache.c:401 __dentry_kill+0x2db/0x4a0 fs/dcache.c:607 dentry_kill+0x8d/0x1e0 dput+0x118/0x1f0 fs/dcache.c:913 __fput+0x41d/0x630 fs/file_table.c:402 ____fput+0x15/0x20 fs/file_table.c:422 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:1021 get_signal+0xf4e/0x10a0 kernel/signal.c:2904 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop+0x6f/0xe0 kernel/entry/common.c:168 exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204 irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:309 irqentry_exit+0x12/0x40 kernel/entry/common.c:412 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 read to 0xffffea00056499d8 of 8 bytes by task 993 on cpu 0: folio_mapping+0x92/0x110 mm/util.c:782 folio_evictable mm/internal.h:162 [inline] move_folios_to_lru+0x132/0x690 mm/vmscan.c:1800 shrink_inactive_list mm/vmscan.c:1916 [inline] shrink_list mm/vmscan.c:2154 [inline] shrink_lruvec+0xd98/0x17a0 mm/vmscan.c:5626 shrink_node_memcgs mm/vmscan.c:5812 [inline] shrink_node+0xab3/0x15c0 mm/vmscan.c:5847 shrink_zones mm/vmscan.c:6086 [inline] do_try_to_free_pages+0x43d/0xce0 mm/vmscan.c:6148 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:6463 try_charge_memcg+0x280/0xd30 mm/memcontrol.c:2742 obj_cgroup_charge_pages+0xab/0x130 mm/memcontrol.c:3255 __memcg_kmem_charge_page+0x9c/0x170 mm/memcontrol.c:3281 __alloc_pages+0x1bb/0x340 mm/page_alloc.c:4585 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+0x6d2/0xea0 mm/vmalloc.c:3320 __bpf_map_area_alloc kernel/bpf/syscall.c:308 [inline] bpf_map_area_alloc+0xd8/0x100 kernel/bpf/syscall.c:315 bloom_map_alloc+0x1aa/0x2b0 kernel/bpf/bloom_filter.c:134 map_create+0x713/0xa40 kernel/bpf/syscall.c:1210 __sys_bpf+0x62a/0x780 kernel/bpf/syscall.c:5365 __do_sys_bpf kernel/bpf/syscall.c:5487 [inline] __se_sys_bpf kernel/bpf/syscall.c:5485 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5485 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b value changed: 0xffff8881412a54e0 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 993 Comm: syz-executor.1 Not tainted 6.7.0-rc2-syzkaller-00242-g090472ed9c92 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 ================================================================== syz-executor.1 (993) used greatest stack depth: 9992 bytes left