================================================================== BUG: KCSAN: data-race in __filemap_remove_folio / filemap_write_and_wait_range read-write to 0xffff88810ad12970 of 8 bytes by task 22152 on cpu 1: page_cache_delete mm/filemap.c:145 [inline] __filemap_remove_folio+0x216/0x2f0 mm/filemap.c:223 __remove_mapping+0x35c/0x480 mm/vmscan.c:1379 remove_mapping+0x1f/0x90 mm/vmscan.c:1412 mapping_evict_folio mm/truncate.c:282 [inline] invalidate_mapping_pagevec+0x2dc/0x470 mm/truncate.c:528 invalidate_mapping_pages+0x23/0x30 mm/truncate.c:567 ext4_dio_write_iter fs/ext4/file.c:623 [inline] ext4_file_write_iter+0xd84/0x1170 fs/ext4/file.c:698 do_iter_write+0x494/0x750 fs/read_write.c:861 vfs_iter_write+0x4c/0x70 fs/read_write.c:902 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:931 splice_direct_to_actor+0x305/0x620 fs/splice.c:886 do_splice_direct+0xfb/0x180 fs/splice.c:974 do_sendfile+0x3bf/0x910 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1309 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+0x63/0xcd read to 0xffff88810ad12970 of 8 bytes by task 22163 on cpu 0: mapping_needs_writeback mm/filemap.c:627 [inline] filemap_write_and_wait_range+0x34/0x1d0 mm/filemap.c:673 __iomap_dio_rw+0x5dc/0x1000 fs/iomap/direct-io.c:573 iomap_dio_rw+0x3c/0x80 fs/iomap/direct-io.c:690 ext4_dio_read_iter fs/ext4/file.c:94 [inline] ext4_file_read_iter+0x20c/0x280 fs/ext4/file.c:145 call_read_iter include/linux/fs.h:2185 [inline] generic_file_splice_read+0xde/0x2b0 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x26c/0x620 fs/splice.c:865 do_splice_direct+0xfb/0x180 fs/splice.c:974 do_sendfile+0x3bf/0x910 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1309 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+0x63/0xcd value changed: 0x0000000000000007 -> 0x0000000000000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 22163 Comm: syz-executor.3 Not tainted 6.0.0-syzkaller-11414-g49da07006239-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 ==================================================================