==================================================================
BUG: KCSAN: data-race in generic_fillattr / touch_atime

write to 0xffff888113535830 of 4 bytes by task 3302 on cpu 0:
 inode_set_atime_to_ts include/linux/fs.h:1569 [inline]
 inode_update_timestamps fs/inode.c:1930 [inline]
 generic_update_time fs/inode.c:1952 [inline]
 inode_update_time fs/inode.c:1972 [inline]
 touch_atime+0x1f3/0x350 fs/inode.c:2044
 file_accessed include/linux/fs.h:2480 [inline]
 iterate_dir+0x1b0/0x330 fs/readdir.c:111
 __do_sys_getdents64 fs/readdir.c:407 [inline]
 __se_sys_getdents64+0x88/0x1a0 fs/readdir.c:392
 __x64_sys_getdents64+0x43/0x50 fs/readdir.c:392
 x64_sys_call+0x1110/0x2e00 arch/x86/include/generated/asm/syscalls_64.h:218
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888113535830 of 4 bytes by task 3082 on cpu 1:
 inode_get_atime_nsec include/linux/fs.h:1554 [inline]
 inode_get_atime include/linux/fs.h:1560 [inline]
 generic_fillattr+0x16f/0x2f0 fs/stat.c:60
 shmem_getattr+0x17b/0x200 mm/shmem.c:1157
 vfs_getattr_nosec fs/stat.c:166 [inline]
 vfs_getattr fs/stat.c:207 [inline]
 vfs_fstat+0x1b9/0x470 fs/stat.c:229
 vfs_fstatat+0xa2/0x110 fs/stat.c:338
 __do_sys_newfstatat fs/stat.c:505 [inline]
 __se_sys_newfstatat+0x58/0x260 fs/stat.c:499
 __x64_sys_newfstatat+0x55/0x70 fs/stat.c:499
 x64_sys_call+0x2d6a/0x2e00 arch/x86/include/generated/asm/syscalls_64.h:263
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x02aa3d3b -> 0x03db6a3c

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 3082 Comm: udevd Not tainted 6.10.0-syzkaller-11840-g933069701c1b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
==================================================================