================================================================== BUG: KCSAN: data-race in evict / insert_inode_locked write to 0xffff88812786d1c8 of 8 bytes by task 7880 on cpu 0: hlist_add_head include/linux/list.h:787 [inline] insert_inode_locked+0x2db/0x3b0 fs/inode.c:1474 __ext4_new_inode+0x17e7/0x2f10 fs/ext4/ialloc.c:1102 ext4_mkdir+0x270/0x820 fs/ext4/namei.c:2774 vfs_mkdir+0x283/0x390 fs/namei.c:3819 do_mkdirat+0x1ac/0x1f0 fs/namei.c:3842 __do_sys_mkdir fs/namei.c:3858 [inline] __se_sys_mkdir fs/namei.c:3856 [inline] __x64_sys_mkdir+0x40/0x50 fs/namei.c:3856 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88812786d1c8 of 8 bytes by task 7875 on cpu 1: inode_unhashed include/linux/fs.h:749 [inline] remove_inode_hash include/linux/fs.h:3078 [inline] evict+0x2a0/0x410 fs/inode.c:584 iput_final fs/inode.c:1563 [inline] iput+0x371/0x4e0 fs/inode.c:1589 dentry_unlink_inode+0x270/0x2e0 fs/dcache.c:374 d_delete fs/dcache.c:2451 [inline] d_delete+0xdb/0xe0 fs/dcache.c:2440 vfs_rmdir fs/namei.c:3896 [inline] vfs_rmdir+0x2e2/0x300 fs/namei.c:3861 do_rmdir+0x2cb/0x300 fs/namei.c:3944 __do_sys_rmdir fs/namei.c:3962 [inline] __se_sys_rmdir fs/namei.c:3960 [inline] __x64_sys_rmdir+0x2f/0x40 fs/namei.c:3960 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 7875 Comm: syz-executor.0 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================