KCSAN: data-race in iput / writeback_sb

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in iput / writeback_sb_inodes (2) fs	6	1	2089d	2089d	0/29	closed as invalid on 2020/06/18 14:13
upstream	KCSAN: data-race in iput / writeback_sb_inodes (3) fs	6	1	2069d	2069d	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	1655d	1655d	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	1727d	1734d	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	1430d	1430d	0/29	auto-closed as invalid on 2022/05/13 10:29
upstream	KCSAN: data-race in iput / writeback_sb_inodes (11) fs	6	1	733d	733d	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	1865d	1888d	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	1952d	1917d	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	1312d	1326d	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	1046d	1046d	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 0xffff8880af0fc1c0 of 8 bytes by task 1002 on cpu 1: 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:2264 worker_thread+0x9a/0x7e0 kernel/workqueue.c:2410 kthread+0x1cb/0x1f0 kernel/kthread.c:255 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 read to 0xffff8880af0fc1c0 of 8 bytes by task 7888 on cpu 0: iput+0x4d/0x4d0 fs/inode.c:1587 do_unlinkat+0x388/0x550 fs/namei.c:4143 __do_sys_unlink fs/namei.c:4184 [inline] __se_sys_unlink fs/namei.c:4182 [inline] __x64_sys_unlink+0x38/0x50 fs/namei.c:4182 do_syscall_64+0xc7/0x390 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7888 Comm: syz-executor.0 Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================