================================================================== BUG: KCSAN: data-race in generic_fillattr / inode_set_ctime_to_ts write to 0xffff8881031ff820 of 8 bytes by task 3293 on cpu 0: inode_set_ctime_to_ts+0x73/0x180 fs/inode.c:2667 inode_set_ctime_current+0x1b5/0x770 fs/inode.c:2731 shmem_symlink+0x355/0x3c0 mm/shmem.c:4144 vfs_symlink+0xca/0x1d0 fs/namei.c:4688 do_symlinkat+0xe1/0x370 fs/namei.c:4714 __do_sys_symlink fs/namei.c:4735 [inline] __se_sys_symlink fs/namei.c:4733 [inline] __x64_sys_symlink+0x50/0x60 fs/namei.c:4733 x64_sys_call+0x2a77/0x2e10 arch/x86/include/generated/asm/syscalls_64.h:89 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 0xffff8881031ff820 of 8 bytes by task 3375 on cpu 1: inode_get_ctime_sec include/linux/fs.h:1723 [inline] inode_get_ctime include/linux/fs.h:1733 [inline] generic_fillattr+0x1bc/0x330 fs/stat.c:101 shmem_getattr+0x17b/0x200 mm/shmem.c:1249 vfs_getattr_nosec fs/stat.c:208 [inline] vfs_getattr+0x172/0x1b0 fs/stat.c:246 vfs_statx_path fs/stat.c:283 [inline] vfs_statx+0x130/0x330 fs/stat.c:349 vfs_fstatat+0xe4/0x130 fs/stat.c:368 __do_sys_newfstatat fs/stat.c:532 [inline] __se_sys_newfstatat+0x58/0x260 fs/stat.c:526 __x64_sys_newfstatat+0x55/0x70 fs/stat.c:526 x64_sys_call+0x2d6f/0x2e10 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: 0x0000000067e2ddc8 -> 0x0000000067e2ddcb Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3375 Comm: udevd Not tainted 6.14.0-syzkaller-00685-g3ba7dfb8da62 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 ==================================================================