================================================================== BUG: KCSAN: data-race in iput / writeback_sb_inodes write to 0xffff8880a2996788 of 8 bytes by task 23115 on cpu 0: inode_io_list_del_locked fs/fs-writeback.c:148 [inline] requeue_inode fs/fs-writeback.c:1440 [inline] writeback_sb_inodes+0xc9b/0xff0 fs/fs-writeback.c:1748 __writeback_inodes_wb+0xb0/0x2b0 fs/fs-writeback.c:1790 wb_writeback+0x2b0/0x6f0 fs/fs-writeback.c:1896 wb_check_start_all fs/fs-writeback.c:2020 [inline] wb_do_writeback+0x423/0x5f0 fs/fs-writeback.c:2046 wb_workfn+0xc8/0x470 fs/fs-writeback.c:2080 process_one_work+0x3e1/0x9a0 kernel/workqueue.c:2269 worker_thread+0x665/0xbe0 kernel/workqueue.c:2415 kthread+0x20d/0x230 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 read to 0xffff8880a2996788 of 8 bytes by task 8746 on cpu 1: iput+0x2e/0x550 fs/inode.c:1668 do_unlinkat+0x2c9/0x4d0 fs/namei.c:3902 __do_sys_unlink fs/namei.c:3942 [inline] __se_sys_unlink fs/namei.c:3940 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:3940 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: 1 PID: 8746 Comm: syz-executor.3 Not tainted 5.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================