KCSAN: data-race in dput / shrink_dentry

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in dput / shrink_dentry_list (2) fs	6	1	1663d	1663d	0/29	auto-closed as invalid on 2021/02/25 05:57
upstream	KCSAN: data-race in dput / shrink_dentry_list (4) fs	6	1	1047d	1047d	0/29	auto-obsoleted due to no activity on 2022/11/02 13:46
upstream	KCSAN: data-race in dput / shrink_dentry_list (3) fs	6	5	1306d	1350d	0/29	auto-closed as invalid on 2022/02/16 22:40

================================================================== BUG: KCSAN: data-race in dput / shrink_dentry_list read-write to 0xffff888107a6c0c0 of 4 bytes by task 6229 on cpu 1: d_shrink_del fs/dcache.c:421 [inline] shrink_dentry_list+0x20f/0x590 fs/dcache.c:1128 shrink_dcache_sb+0x10d/0x1c0 fs/dcache.c:1261 reconfigure_super+0x267/0x4d0 fs/super.c:940 do_remount fs/namespace.c:2612 [inline] path_mount+0x13b1/0x1c10 fs/namespace.c:3197 do_mount fs/namespace.c:3218 [inline] __do_sys_mount fs/namespace.c:3426 [inline] __se_sys_mount+0x23d/0x2e0 fs/namespace.c:3403 __x64_sys_mount+0x63/0x70 fs/namespace.c:3403 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888107a6c0c0 of 4 bytes by task 10456 on cpu 0: fast_dput fs/dcache.c:746 [inline] dput+0x2f/0x420 fs/dcache.c:865 path_put fs/namei.c:496 [inline] do_unlinkat+0x37a/0x4d0 fs/namei.c:3912 __do_sys_unlink fs/namei.c:3943 [inline] __se_sys_unlink fs/namei.c:3941 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:3941 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10456 Comm: syz-executor.1 Not tainted 5.10.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================