================================================================== BUG: KCSAN: data-race in d_set_mounted / dput write to 0xffff88801076eb40 of 4 bytes by task 4202 on cpu 0: d_set_mounted+0xfc/0x190 fs/dcache.c:1492 get_mountpoint+0x1be/0x300 fs/namespace.c:755 lock_mount+0x86/0x1d0 fs/namespace.c:2224 do_new_mount_fc fs/namespace.c:2846 [inline] do_new_mount fs/namespace.c:2905 [inline] path_mount+0x18a4/0x1c00 fs/namespace.c:3233 do_mount fs/namespace.c:3246 [inline] __do_sys_mount fs/namespace.c:3454 [inline] __se_sys_mount+0x23d/0x2e0 fs/namespace.c:3431 __x64_sys_mount+0x63/0x70 fs/namespace.c:3431 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88801076eb40 of 4 bytes by task 4210 on cpu 1: fast_dput fs/dcache.c:747 [inline] dput+0x34/0x430 fs/dcache.c:873 open_last_lookups fs/namei.c:3306 [inline] path_openat+0x1b16/0x21b0 fs/namei.c:3497 do_filp_open+0xd9/0x1f0 fs/namei.c:3527 do_sys_openat2+0xa3/0x250 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_creat fs/open.c:1277 [inline] __se_sys_creat fs/open.c:1271 [inline] __x64_sys_creat+0x62/0x80 fs/open.c:1271 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 4210 Comm: syz-executor.5 Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================