================================================================== BUG: KCSAN: data-race in __filemap_remove_folio / filemap_write_and_wait_range read-write to 0xffff888156070cb0 of 8 bytes by task 24311 on cpu 0: page_cache_delete mm/filemap.c:147 [inline] __filemap_remove_folio+0x224/0x320 mm/filemap.c:225 invalidate_complete_folio2 mm/truncate.c:587 [inline] invalidate_inode_pages2_range+0x506/0x790 mm/truncate.c:674 __iomap_dio_rw+0x6a8/0x1100 fs/iomap/direct-io.c:579 iomap_dio_rw+0x40/0x90 fs/iomap/direct-io.c:688 ext4_dio_write_iter fs/ext4/file.c:597 [inline] ext4_file_write_iter+0x9e6/0x10e0 fs/ext4/file.c:708 do_iter_write+0x4ae/0x770 fs/read_write.c:860 vfs_iter_write+0x50/0x70 fs/read_write.c:901 iter_file_splice_write+0x456/0x7d0 fs/splice.c:795 do_splice_from fs/splice.c:873 [inline] direct_splice_actor+0x84/0xa0 fs/splice.c:1039 splice_direct_to_actor+0x2ee/0x5f0 fs/splice.c:994 do_splice_direct+0x104/0x180 fs/splice.c:1082 do_sendfile+0x3b8/0x950 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64 fs/read_write.c:1308 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888156070cb0 of 8 bytes by task 24328 on cpu 1: mapping_needs_writeback mm/filemap.c:628 [inline] filemap_write_and_wait_range+0x54/0x220 mm/filemap.c:677 __iomap_dio_rw+0x5dc/0x1100 fs/iomap/direct-io.c:569 iomap_dio_rw+0x40/0x90 fs/iomap/direct-io.c:688 ext4_dio_read_iter fs/ext4/file.c:94 [inline] ext4_file_read_iter+0x210/0x290 fs/ext4/file.c:145 call_read_iter include/linux/fs.h:1862 [inline] generic_file_splice_read+0xe3/0x290 fs/splice.c:419 do_splice_to fs/splice.c:902 [inline] splice_direct_to_actor+0x25a/0x5f0 fs/splice.c:973 do_splice_direct+0x104/0x180 fs/splice.c:1082 do_sendfile+0x3b8/0x950 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64 fs/read_write.c:1308 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000000000000f0 -> 0x00000000000000e9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 24328 Comm: syz-executor.0 Tainted: G W 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ==================================================================