================================================================== BUG: KCSAN: data-race in iput / writeback_sb_inodes write to 0xffff888013216b98 of 8 bytes by task 8 on cpu 1: writeback_sb_inodes+0x494/0x1020 fs/fs-writeback.c:1710 __writeback_inodes_wb+0xb0/0x2a0 fs/fs-writeback.c:1790 wb_writeback+0x290/0x660 fs/fs-writeback.c:1896 wb_check_background_flush fs/fs-writeback.c:1964 [inline] wb_do_writeback+0x583/0x5d0 fs/fs-writeback.c:2052 wb_workfn+0xb8/0x410 fs/fs-writeback.c:2080 process_one_work+0x3e1/0x950 kernel/workqueue.c:2275 worker_thread+0x635/0xb90 kernel/workqueue.c:2421 kthread+0x1fd/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 read to 0xffff888013216b98 of 8 bytes by task 8475 on cpu 0: iput+0x2e/0x510 fs/inode.c:1669 dentry_unlink_inode+0x1f3/0x210 fs/dcache.c:374 d_delete+0x70/0xa0 fs/dcache.c:2477 vfs_rmdir+0x271/0x290 fs/namei.c:3729 do_rmdir+0x16e/0x300 fs/namei.c:3776 __do_sys_rmdir fs/namei.c:3794 [inline] __se_sys_rmdir fs/namei.c:3792 [inline] __x64_sys_rmdir+0x2c/0x30 fs/namei.c:3792 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: 8475 Comm: syz-executor.3 Not tainted 5.11.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================