KCSAN: data-race in iput / writeback_sb

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in iput / writeback_sb_inodes (3) fs	6	1	2110d	2110d	0/29	auto-closed as invalid on 2020/08/11 19:26
upstream	KCSAN: data-race in iput / writeback_sb_inodes (7) fs	6	1	1696d	1696d	0/29	auto-closed as invalid on 2021/09/29 17:35
upstream	KCSAN: data-race in iput / writeback_sb_inodes (6) fs	6	2	1767d	1774d	0/29	auto-closed as invalid on 2021/07/20 06:50
upstream	KCSAN: data-race in iput / writeback_sb_inodes (8) fs	6	1	1470d	1470d	0/29	auto-closed as invalid on 2022/05/13 10:29
upstream	KCSAN: data-race in iput / writeback_sb_inodes fs	6	1	2230d	2230d	0/29	auto-closed as invalid on 2020/05/18 05:32
upstream	KCSAN: data-race in iput / writeback_sb_inodes (11) fs	6	1	773d	773d	0/29	auto-obsoleted due to no activity on 2024/04/09 08:02
upstream	KCSAN: data-race in iput / writeback_sb_inodes (5) fs	6	4	1905d	1929d	0/29	auto-closed as invalid on 2021/03/04 09:19
upstream	KCSAN: data-race in iput / writeback_sb_inodes (4) fs	6	7	1993d	1957d	0/29	auto-closed as invalid on 2020/12/21 11:42
upstream	KCSAN: data-race in iput / writeback_sb_inodes (9) fs	6	2	1352d	1367d	0/29	auto-closed as invalid on 2022/09/08 05:08
upstream	KCSAN: data-race in iput / writeback_sb_inodes (10) fs	6	1	1087d	1087d	0/29	auto-obsoleted due to no activity on 2023/05/31 14:58

================================================================== BUG: KCSAN: data-race in iput / writeback_sb_inodes write to 0xffff8880b8d885c0 of 8 bytes by task 3793 on cpu 0: writeback_sb_inodes+0x3bd/0xa10 fs/fs-writeback.c:1705 wb_writeback+0x1f9/0x6a0 fs/fs-writeback.c:1892 wb_do_writeback fs/fs-writeback.c:2037 [inline] wb_workfn+0x215/0x970 fs/fs-writeback.c:2078 process_one_work+0x424/0x930 kernel/workqueue.c:2268 worker_thread+0x9a/0x7e0 kernel/workqueue.c:2414 kthread+0x203/0x230 kernel/kthread.c:268 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 read to 0xffff8880b8d885c0 of 8 bytes by task 9049 on cpu 1: iput+0x4d/0x4d0 fs/inode.c:1588 dentry_unlink_inode+0x272/0x2e0 fs/dcache.c:374 d_delete fs/dcache.c:2451 [inline] d_delete+0xca/0xe0 fs/dcache.c:2440 vfs_rmdir fs/namei.c:3702 [inline] vfs_rmdir+0x2f1/0x310 fs/namei.c:3667 do_rmdir+0x2e9/0x320 fs/namei.c:3750 __do_sys_rmdir fs/namei.c:3768 [inline] __se_sys_rmdir fs/namei.c:3766 [inline] __x64_sys_rmdir+0x2c/0x40 fs/namei.c:3766 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 9049 Comm: syz-executor.1 Not tainted 5.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================