================================================================== BUG: KCSAN: data-race in __filemap_remove_folio / folio_mapping write to 0xffffea0004eb0318 of 8 bytes by task 26557 on cpu 0: page_cache_delete mm/filemap.c:143 [inline] __filemap_remove_folio+0x1b7/0x2c0 mm/filemap.c:219 invalidate_complete_folio2 mm/truncate.c:609 [inline] invalidate_inode_pages2_range+0x456/0x680 mm/truncate.c:697 __iomap_dio_rw+0x5ee/0x10a0 fs/iomap/direct-io.c:571 iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:680 ext4_dio_write_iter fs/ext4/file.c:564 [inline] ext4_file_write_iter+0x7d5/0xda0 fs/ext4/file.c:675 call_write_iter include/linux/fs.h:2074 [inline] do_iter_readv_writev+0x2de/0x380 fs/read_write.c:725 do_iter_write+0x192/0x5c0 fs/read_write.c:851 vfs_iter_write+0x4c/0x70 fs/read_write.c:892 iter_file_splice_write+0x43a/0x790 fs/splice.c:689 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:936 splice_direct_to_actor+0x345/0x650 fs/splice.c:891 do_splice_direct+0x106/0x190 fs/splice.c:979 do_sendfile+0x675/0xc40 fs/read_write.c:1245 __do_sys_sendfile64 fs/read_write.c:1310 [inline] __se_sys_sendfile64 fs/read_write.c:1296 [inline] __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffea0004eb0318 of 8 bytes by task 26566 on cpu 1: folio_mapping+0x92/0x120 mm/util.c:717 folio_evictable mm/internal.h:121 [inline] __pagevec_lru_add_fn+0x81/0x380 mm/swap.c:1043 __pagevec_lru_add+0x1c3/0x270 mm/swap.c:1071 lru_add_drain_cpu+0x6a/0x260 mm/swap.c:613 lru_add_drain mm/swap.c:717 [inline] __pagevec_release+0x4b/0xc0 mm/swap.c:997 pagevec_release include/linux/pagevec.h:82 [inline] mpage_prepare_extent_to_map+0x508/0x560 fs/ext4/inode.c:2616 ext4_writepages+0x5d6/0x1a60 fs/ext4/inode.c:2732 do_writepages+0x1cb/0x330 mm/page-writeback.c:2364 filemap_fdatawrite_wbc mm/filemap.c:384 [inline] __filemap_fdatawrite_range mm/filemap.c:417 [inline] file_write_and_wait_range+0x134/0x1d0 mm/filemap.c:775 ext4_sync_file+0xad/0x570 fs/ext4/fsync.c:151 vfs_fsync_range+0x107/0x120 fs/sync.c:188 generic_write_sync include/linux/fs.h:2884 [inline] ext4_buffered_write_iter+0x243/0x290 fs/ext4/file.c:275 ext4_file_write_iter+0x227/0xda0 call_write_iter include/linux/fs.h:2074 [inline] do_iter_readv_writev+0x2de/0x380 fs/read_write.c:725 do_iter_write+0x192/0x5c0 fs/read_write.c:851 vfs_iter_write+0x4c/0x70 fs/read_write.c:892 iter_file_splice_write+0x43a/0x790 fs/splice.c:689 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:936 splice_direct_to_actor+0x345/0x650 fs/splice.c:891 do_splice_direct+0x106/0x190 fs/splice.c:979 do_sendfile+0x675/0xc40 fs/read_write.c:1245 __do_sys_sendfile64 fs/read_write.c:1310 [inline] __se_sys_sendfile64 fs/read_write.c:1296 [inline] __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0xffff888148b608f0 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 26566 Comm: syz-executor.5 Not tainted 5.17.0-rc6-syzkaller-00251-gdcde98da9970-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================