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BUG: KCSAN: data-race in generic_fillattr / inode_set_ctime_current

write to 0xffff888127e2a2d0 of 8 bytes by task 21979 on cpu 1:
 inode_set_ctime_to_ts include/linux/fs.h:1535 [inline]
 inode_set_ctime include/linux/fs.h:1553 [inline]
 inode_set_ctime_current+0x16c/0x1d0 fs/inode.c:2541
 shmem_unlink+0x118/0x190 mm/shmem.c:3343
 vfs_unlink+0x261/0x3e0 fs/namei.c:4332
 do_unlinkat+0x26c/0x4f0 fs/namei.c:4398
 __do_sys_unlink fs/namei.c:4446 [inline]
 __se_sys_unlink fs/namei.c:4444 [inline]
 __x64_sys_unlink+0x30/0x40 fs/namei.c:4444
 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

read to 0xffff888127e2a2d0 of 8 bytes by task 21987 on cpu 0:
 inode_get_ctime include/linux/fs.h:1522 [inline]
 generic_fillattr+0x196/0x2b0 fs/stat.c:62
 shmem_getattr+0x187/0x200 mm/shmem.c:1139
 vfs_getattr_nosec fs/stat.c:135 [inline]
 vfs_getattr fs/stat.c:172 [inline]
 vfs_statx+0x266/0x430 fs/stat.c:244
 vfs_fstatat+0xcd/0x100 fs/stat.c:295
 __do_sys_newfstatat fs/stat.c:459 [inline]
 __se_sys_newfstatat+0x58/0x260 fs/stat.c:453
 __x64_sys_newfstatat+0x55/0x60 fs/stat.c:453
 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

value changed: 0x0000000027ac6208 -> 0x000000002da2430a

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 21987 Comm: udevd Not tainted 6.6.0-rc6-syzkaller-00043-gdd72f9c7e512 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
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I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2