================================================================== BUG: KCSAN: data-race in generic_fillattr / generic_update_time write to 0xffff888129d2f4e0 of 16 bytes by task 9113 on cpu 1: generic_update_time+0xc2/0x270 fs/inode.c:1672 update_time+0x7d/0x90 fs/inode.c:1694 file_update_time+0x205/0x2d0 fs/inode.c:1909 filemap_page_mkwrite+0xb3/0x1d0 mm/filemap.c:2656 do_page_mkwrite+0xfa/0x210 mm/memory.c:2364 do_shared_fault mm/memory.c:3738 [inline] do_fault mm/memory.c:3806 [inline] handle_pte_fault mm/memory.c:4033 [inline] __handle_mm_fault+0x1d99/0x2cf0 mm/memory.c:4163 handle_mm_fault+0x21c/0x540 mm/memory.c:4200 faultin_page mm/gup.c:659 [inline] __get_user_pages+0x485/0x1140 mm/gup.c:870 __get_user_pages_locked mm/gup.c:1057 [inline] get_user_pages_unlocked+0x24a/0x420 mm/gup.c:1765 __gup_longterm_unlocked mm/gup.c:2423 [inline] internal_get_user_pages_fast mm/gup.c:2464 [inline] get_user_pages_fast+0x32d/0x350 mm/gup.c:2505 iov_iter_get_pages+0x1d3/0x8cc lib/iov_iter.c:1323 __bio_iov_iter_get_pages block/bio.c:939 [inline] bio_iov_iter_get_pages+0x106/0x5a0 block/bio.c:995 __blkdev_direct_IO fs/block_dev.c:386 [inline] blkdev_direct_IO+0x5e3/0xab0 fs/block_dev.c:476 generic_file_read_iter+0x1aa/0x1490 mm/filemap.c:2281 blkdev_read_iter+0xae/0xe0 fs/block_dev.c:2039 call_read_iter include/linux/fs.h:1895 [inline] do_iter_readv_writev+0x570/0x5d0 fs/read_write.c:691 do_iter_read+0x1e4/0x3a0 fs/read_write.c:933 vfs_readv+0x9c/0xf0 fs/read_write.c:1053 do_preadv+0x129/0x1c0 fs/read_write.c:1145 __do_sys_preadv fs/read_write.c:1195 [inline] __se_sys_preadv fs/read_write.c:1190 [inline] __x64_sys_preadv+0x5e/0x80 fs/read_write.c:1190 do_syscall_64+0xc7/0x390 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888129d2f4e0 of 16 bytes by task 9130 on cpu 0: generic_fillattr+0x16a/0x1e0 fs/stat.c:47 vfs_getattr_nosec+0x155/0x160 fs/stat.c:86 vfs_getattr+0x53/0x70 fs/stat.c:120 vfs_statx_fd+0x74/0xc0 fs/stat.c:147 vfs_fstat include/linux/fs.h:3287 [inline] __do_sys_newfstat+0x46/0xa0 fs/stat.c:388 __se_sys_newfstat fs/stat.c:385 [inline] __x64_sys_newfstat+0x37/0x50 fs/stat.c:385 do_syscall_64+0xc7/0x390 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9130 Comm: blkid Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================