================================================================== BUG: KCSAN: data-race in shmem_symlink / vfs_getattr_nosec write to 0xffff888104dcec88 of 8 bytes by task 8341 on cpu 1: shmem_symlink+0x2e4/0x390 mm/shmem.c:3073 vfs_symlink+0x241/0x330 fs/namei.c:4248 do_symlinkat+0x104/0x380 fs/namei.c:4277 __do_sys_symlink fs/namei.c:4299 [inline] __se_sys_symlink fs/namei.c:4297 [inline] __x64_sys_symlink+0x52/0x60 fs/namei.c:4297 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888104dcec88 of 8 bytes by task 1889 on cpu 0: i_size_read include/linux/fs.h:891 [inline] generic_fillattr fs/stat.c:53 [inline] vfs_getattr_nosec+0x242/0x2f0 fs/stat.c:126 vfs_getattr fs/stat.c:160 [inline] vfs_statx+0x138/0x2a0 fs/stat.c:225 vfs_fstatat fs/stat.c:243 [inline] __do_sys_newfstatat fs/stat.c:412 [inline] __se_sys_newfstatat+0x63/0x260 fs/stat.c:406 __x64_sys_newfstatat+0x51/0x60 fs/stat.c:406 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000000000c8 -> 0x00000000000000dc Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1889 Comm: udevd Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================