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BUG: KCSAN: data-race in _copy_to_iter / copy_page_from_iter_atomic

read to 0xffff888140d8dc00 of 1024 bytes by task 3185 on cpu 1:
 instrument_copy_to_user include/linux/instrumented.h:113 [inline]
 copyout lib/iov_iter.c:167 [inline]
 _copy_to_iter+0x12b/0x910 lib/iov_iter.c:316
 copy_page_to_iter+0x184/0x2c0 lib/iov_iter.c:481
 copy_folio_to_iter include/linux/uio.h:185 [inline]
 filemap_read+0x421/0x670 mm/filemap.c:2709
 blkdev_read_iter+0x217/0x2c0 block/fops.c:617
 call_read_iter include/linux/fs.h:1871 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x3da/0x5c0 fs/read_write.c:470
 ksys_read+0xeb/0x1a0 fs/read_write.c:613
 __do_sys_read fs/read_write.c:623 [inline]
 __se_sys_read fs/read_write.c:621 [inline]
 __x64_sys_read+0x42/0x50 fs/read_write.c:621
 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

write to 0xffff888140d8d000 of 4096 bytes by task 13849 on cpu 0:
 instrument_copy_from_user_before include/linux/instrumented.h:130 [inline]
 copyin lib/iov_iter.c:192 [inline]
 copy_page_from_iter_atomic+0x292/0xcf0 lib/iov_iter.c:581
 generic_perform_write+0x212/0x410 mm/filemap.c:3931
 __generic_file_write_iter+0xa1/0x120 mm/filemap.c:4018
 blkdev_write_iter+0x256/0x3c0 block/fops.c:573
 call_write_iter include/linux/fs.h:1877 [inline]
 aio_write+0x2e7/0x400 fs/aio.c:1596
 io_submit_one+0xb39/0x1250 fs/aio.c:2015
 __do_sys_io_submit fs/aio.c:2074 [inline]
 __se_sys_io_submit+0xf5/0x280 fs/aio.c:2044
 __x64_sys_io_submit+0x43/0x50 fs/aio.c:2044
 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

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 13849 Comm: syz-executor.1 Not tainted 6.5.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
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