================================================================== BUG: KCSAN: data-race in filemap_write_and_wait_range / page_cache_delete read-write to 0xffff888133cf6870 of 8 bytes by task 2376 on cpu 0: page_cache_delete+0x32c/0x360 mm/filemap.c:145 __filemap_remove_folio+0x3b/0xf0 mm/filemap.c:223 __remove_mapping+0x42a/0x530 mm/vmscan.c:1307 shrink_page_list+0x1a98/0x3d40 mm/vmscan.c:1889 shrink_inactive_list+0x433/0x740 mm/vmscan.c:2360 shrink_list mm/vmscan.c:2590 [inline] shrink_lruvec+0x3b9/0x700 mm/vmscan.c:2909 shrink_node_memcgs+0x23e/0x400 mm/vmscan.c:3098 shrink_node+0x8c3/0x1110 mm/vmscan.c:3221 shrink_zones+0x2c1/0x5d0 mm/vmscan.c:3458 do_try_to_free_pages+0x165/0x720 mm/vmscan.c:3516 try_to_free_mem_cgroup_pages+0x1cd/0x420 mm/vmscan.c:3830 try_charge_memcg+0x270/0x960 mm/memcontrol.c:2604 obj_cgroup_charge_pages mm/memcontrol.c:2951 [inline] __memcg_kmem_charge_page+0x2e4/0x480 mm/memcontrol.c:2977 __alloc_pages+0x1a5/0x320 mm/page_alloc.c:5425 alloc_pages+0x34d/0x450 vm_area_alloc_pages mm/vmalloc.c:2942 [inline] __vmalloc_area_node mm/vmalloc.c:3001 [inline] __vmalloc_node_range+0x740/0xec0 mm/vmalloc.c:3172 __bpf_map_area_alloc kernel/bpf/syscall.c:330 [inline] bpf_map_area_alloc+0xbc/0xd0 kernel/bpf/syscall.c:337 bloom_map_alloc+0x229/0x370 kernel/bpf/bloom_filter.c:144 find_and_alloc_map kernel/bpf/syscall.c:129 [inline] map_create+0x38a/0x6e0 kernel/bpf/syscall.c:864 __sys_bpf+0x269/0x600 kernel/bpf/syscall.c:4645 __do_sys_bpf kernel/bpf/syscall.c:4767 [inline] __se_sys_bpf kernel/bpf/syscall.c:4765 [inline] __x64_sys_bpf+0x3f/0x50 kernel/bpf/syscall.c:4765 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888133cf6870 of 8 bytes by task 2366 on cpu 1: mapping_needs_writeback mm/filemap.c:627 [inline] filemap_write_and_wait_range+0x34/0x2e0 mm/filemap.c:672 __iomap_dio_rw+0x514/0xf80 fs/iomap/direct-io.c:562 iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:681 ext4_dio_read_iter fs/ext4/file.c:79 [inline] ext4_file_read_iter+0x19c/0x200 fs/ext4/file.c:130 call_read_iter include/linux/fs.h:2044 [inline] generic_file_splice_read+0x1de/0x2c0 fs/splice.c:311 do_splice_to fs/splice.c:796 [inline] splice_direct_to_actor+0x2ac/0x660 fs/splice.c:870 do_splice_direct+0xfb/0x180 fs/splice.c:979 do_sendfile+0x3ad/0x900 fs/read_write.c:1246 __do_sys_sendfile64 fs/read_write.c:1311 [inline] __se_sys_sendfile64 fs/read_write.c:1297 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1297 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000000001ca -> 0x00000000000001bf Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 2366 Comm: syz-executor.5 Not tainted 5.18.0-rc2-syzkaller-00050-ga19944809fe9-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================