================================================================== BUG: KCSAN: data-race in path_openat / shrink_dentry_list read-write to 0xffff8881387213c0 of 4 bytes by task 9739 on cpu 0: d_shrink_del fs/dcache.c:448 [inline] shrink_dentry_list+0x1cf/0x380 fs/dcache.c:1188 shrink_dcache_sb+0x188/0x2d0 fs/dcache.c:1321 reconfigure_super+0x146/0x540 fs/super.c:888 do_remount fs/namespace.c:2702 [inline] path_mount+0x984/0xb60 fs/namespace.c:3362 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x281/0x2d0 fs/namespace.c:3568 __x64_sys_mount+0x63/0x70 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881387213c0 of 4 bytes by task 1827 on cpu 1: __d_entry_type include/linux/dcache.h:385 [inline] d_is_reg include/linux/dcache.h:420 [inline] do_open fs/namei.c:3468 [inline] path_openat+0x1592/0x1b30 fs/namei.c:3609 do_filp_open+0x105/0x220 fs/namei.c:3636 do_sys_openat2+0xb5/0x2a0 fs/open.c:1213 do_sys_open fs/open.c:1229 [inline] __do_sys_openat fs/open.c:1245 [inline] __se_sys_openat fs/open.c:1240 [inline] __x64_sys_openat+0xef/0x110 fs/open.c:1240 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00280400 -> 0x00200000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1827 Comm: syz-executor.4 Not tainted 5.18.0-rc5-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================