KCSAN: data-race in iput / move_expired

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in iput / move_expired_inodes (5) fs	6	1	1305d	1305d	0/29	auto-closed as invalid on 2022/07/21 10:59
upstream	KCSAN: data-race in iput / move_expired_inodes (8) fs	6	1	920d	920d	0/29	auto-obsoleted due to no activity on 2023/08/10 09:55
upstream	KCSAN: data-race in iput / move_expired_inodes (10) fs	6	1	701d	701d	0/29	auto-obsoleted due to no activity on 2024/03/16 00:02
upstream	KCSAN: data-race in iput / move_expired_inodes (7) fs	6	1	1050d	1050d	0/29	auto-obsoleted due to no activity on 2023/04/08 21:12
upstream	KCSAN: data-race in iput / move_expired_inodes (9) fs	6	2	738d	761d	0/29	auto-obsoleted due to no activity on 2024/02/07 16:43
upstream	KCSAN: data-race in iput / move_expired_inodes fs	6	5	1875d	1861d	0/29	auto-closed as invalid on 2020/12/27 22:09
upstream	KCSAN: data-race in iput / move_expired_inodes (3) fs	6	3	1713d	1758d	0/29	auto-closed as invalid on 2021/06/07 20:37
upstream	KCSAN: data-race in iput / move_expired_inodes (4) fs	6	1	1584d	1584d	0/29	auto-closed as invalid on 2021/10/15 01:41
upstream	KCSAN: data-race in iput / move_expired_inodes (6) fs	6	1	1095d	1095d	0/29	auto-obsoleted due to no activity on 2023/02/22 21:07

================================================================== BUG: KCSAN: data-race in iput / move_expired_inodes read-write to 0xffff888009ac0cd8 of 8 bytes by task 3274 on cpu 0: move_expired_inodes+0x1bf/0x490 fs/fs-writeback.c:1257 queue_io+0xe1/0x2b0 fs/fs-writeback.c:1304 wb_writeback+0x255/0x660 fs/fs-writeback.c:1892 wb_do_writeback+0x101/0x5d0 fs/fs-writeback.c:2039 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 0xffff888009ac0cd8 of 8 bytes by task 8457 on cpu 1: 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: 1 PID: 8457 Comm: syz-executor.3 Not tainted 5.11.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================