================================================================== BUG: KCSAN: data-race in iput / writeback_sb_inodes write to 0xffff8880b161f180 of 8 bytes by task 7 on cpu 1: writeback_sb_inodes+0x4b7/0xff0 fs/fs-writeback.c:1710 wb_writeback+0x28d/0x6f0 fs/fs-writeback.c:1894 wb_do_writeback+0x101/0x5f0 fs/fs-writeback.c:2039 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 0xffff8880b161f180 of 8 bytes by task 8708 on cpu 0: iput+0x2e/0x550 fs/inode.c:1668 dentry_unlink_inode+0x210/0x220 fs/dcache.c:374 d_delete+0x78/0xa0 fs/dcache.c:2470 vfs_unlink+0x39a/0x3c0 fs/namei.c:3846 do_unlinkat+0x28a/0x4d0 fs/namei.c:3896 __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: 0 PID: 8708 Comm: syz-executor.0 Not tainted 5.9.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================