================================================================== BUG: KCSAN: data-race in __dentry_kill / link_path_walk write to 0xffff888106e42cc0 of 4 bytes by task 5573 on cpu 0: dentry_unlist fs/dcache.c:522 [inline] __dentry_kill+0x147/0x4e0 fs/dcache.c:578 shrink_dentry_list+0x1bb/0x340 fs/dcache.c:1176 shrink_dcache_sb+0x188/0x2d0 fs/dcache.c:1296 reconfigure_super+0x2aa/0x4f0 fs/super.c:889 do_remount fs/namespace.c:2639 [inline] path_mount+0x1442/0x1ce0 fs/namespace.c:3227 do_mount fs/namespace.c:3248 [inline] __do_sys_mount fs/namespace.c:3456 [inline] __se_sys_mount+0x23d/0x2e0 fs/namespace.c:3433 __x64_sys_mount+0x63/0x70 fs/namespace.c:3433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888106e42cc0 of 4 bytes by task 1 on cpu 1: link_path_walk+0x384/0x770 fs/namei.c:2248 path_openat+0x1a0/0x1f20 fs/namei.c:3503 do_filp_open+0xe9/0x200 fs/namei.c:3534 do_sys_openat2+0xa3/0x250 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_open fs/open.c:1228 [inline] __se_sys_open fs/open.c:1224 [inline] __x64_sys_open+0xe2/0x110 fs/open.c:1224 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00200000 -> 0x00008000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1 Comm: systemd Not tainted 5.13.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================