================================================================== BUG: KCSAN: data-race in shmem_unlink / vfs_getattr_nosec write to 0xffff888124ecd9f0 of 8 bytes by task 30319 on cpu 0: shmem_unlink+0x113/0x190 mm/shmem.c:2957 shmem_rename2+0x2f4/0x430 mm/shmem.c:3051 vfs_rename+0x782/0xba0 fs/namei.c:4303 do_renameat2+0x554/0x930 fs/namei.c:4450 __do_sys_rename fs/namei.c:4496 [inline] __se_sys_rename fs/namei.c:4494 [inline] __x64_sys_rename+0x3a/0x40 fs/namei.c:4494 do_syscall_64+0x51/0xb0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888124ecd9f0 of 8 bytes by task 30324 on cpu 1: i_size_read include/linux/fs.h:875 [inline] generic_fillattr fs/stat.c:45 [inline] vfs_getattr_nosec+0x262/0x310 fs/stat.c:90 vfs_getattr fs/stat.c:124 [inline] vfs_statx+0x148/0x2b0 fs/stat.c:206 vfs_stat include/linux/fs.h:3297 [inline] __do_sys_newstat fs/stat.c:361 [inline] __se_sys_newstat+0x46/0x250 fs/stat.c:357 __x64_sys_newstat+0x2d/0x40 fs/stat.c:357 do_syscall_64+0x51/0xb0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 30324 Comm: systemd-udevd Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================