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BUG: KCSAN: data-race in generic_fillattr / inode_set_ctime_current

write to 0xffff88810762bbc0 of 8 bytes by task 3395 on cpu 1:
 inode_set_ctime_to_ts include/linux/fs.h:1597 [inline]
 inode_set_ctime include/linux/fs.h:1615 [inline]
 inode_set_ctime_current+0x16c/0x1d0 fs/inode.c:2550
 shmem_xattr_handler_set+0x1a9/0x220 mm/shmem.c:3695
 __vfs_setxattr+0x2de/0x300 fs/xattr.c:201
 __vfs_setxattr_noperm+0xed/0x3e0 fs/xattr.c:235
 __vfs_setxattr_locked+0x1af/0x1d0 fs/xattr.c:296
 vfs_setxattr+0x140/0x280 fs/xattr.c:322
 do_setxattr fs/xattr.c:630 [inline]
 setxattr+0x1bc/0x230 fs/xattr.c:653
 path_setxattr+0xf5/0x1a0 fs/xattr.c:672
 __do_sys_lsetxattr fs/xattr.c:695 [inline]
 __se_sys_lsetxattr fs/xattr.c:691 [inline]
 __x64_sys_lsetxattr+0x6a/0x80 fs/xattr.c:691
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff88810762bbc0 of 8 bytes by task 3132 on cpu 0:
 inode_get_ctime include/linux/fs.h:1591 [inline]
 generic_fillattr+0x1e0/0x2f0 fs/stat.c:62
 shmem_getattr+0x17b/0x200 mm/shmem.c:1121
 vfs_getattr_nosec fs/stat.c:135 [inline]
 vfs_getattr+0x198/0x1e0 fs/stat.c:176
 vfs_statx+0x12f/0x2f0 fs/stat.c:248
 vfs_fstatat+0xcd/0x100 fs/stat.c:299
 __do_sys_newfstatat fs/stat.c:463 [inline]
 __se_sys_newfstatat+0x58/0x260 fs/stat.c:457
 __x64_sys_newfstatat+0x55/0x60 fs/stat.c:457
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000000013fdb881 -> 0x00000000152ee581

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3132 Comm: udevd Tainted: G        W          6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2