================================================================== BUG: KCSAN: data-race in generic_fillattr / inode_set_ctime_current write to 0xffff888103d940f8 of 4 bytes by task 5953 on cpu 0: inode_set_ctime_to_ts include/linux/fs.h:1637 [inline] inode_set_ctime_current+0x35/0x50 fs/inode.c:2571 shmem_symlink+0x32d/0x3a0 mm/shmem.c:3702 vfs_symlink+0xca/0x1d0 fs/namei.c:4568 do_symlinkat+0xe3/0x350 fs/namei.c:4594 __do_sys_symlink fs/namei.c:4615 [inline] __se_sys_symlink fs/namei.c:4613 [inline] __x64_sys_symlink+0x50/0x60 fs/namei.c:4613 x64_sys_call+0x2a72/0x2e00 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 0xffff888103d940f8 of 4 bytes by task 5954 on cpu 1: inode_get_ctime_nsec include/linux/fs.h:1622 [inline] inode_get_ctime include/linux/fs.h:1628 [inline] generic_fillattr+0x1dd/0x2f0 fs/stat.c:62 shmem_getattr+0x17b/0x200 mm/shmem.c:1157 vfs_getattr_nosec fs/stat.c:166 [inline] vfs_getattr+0x19b/0x1e0 fs/stat.c:207 vfs_statx_path fs/stat.c:251 [inline] vfs_statx+0x134/0x2f0 fs/stat.c:315 vfs_fstatat+0xec/0x110 fs/stat.c:341 __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: 0x129c06c8 -> 0x13349d48 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 5954 Comm: udevd Not tainted 6.10.0-syzkaller-12030-g66ebbdfdeb09 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 ==================================================================