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	1350d	1350d	0/29	auto-closed as invalid on 2022/07/21 10:59
upstream	KCSAN: data-race in iput / move_expired_inodes (10) fs	6	1	746d	746d	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	1096d	1096d	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	784d	806d	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	1921d	1906d	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	1759d	1804d	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	1629d	1629d	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	1141d	1141d	0/29	auto-obsoleted due to no activity on 2023/02/22 21:07
upstream	KCSAN: data-race in iput / move_expired_inodes (2) fs	6	1	1870d	1870d	0/29	auto-closed as invalid on 2021/02/16 20:27

================================================================== BUG: KCSAN: data-race in iput / move_expired_inodes read-write to 0xffff88810a5e9d20 of 8 bytes by task 3123 on cpu 0: move_expired_inodes+0x17b/0x410 fs/fs-writeback.c:1388 queue_io+0xe1/0x2e0 fs/fs-writeback.c:1440 wb_writeback+0x22a/0x6e0 fs/fs-writeback.c:2068 wb_do_writeback fs/fs-writeback.c:2217 [inline] wb_workfn+0x1a8/0x8d0 fs/fs-writeback.c:2257 process_one_work+0x434/0x860 kernel/workqueue.c:2597 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2748 kthread+0x1d7/0x210 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read to 0xffff88810a5e9d20 of 8 bytes by task 3081 on cpu 1: iput+0x32/0x5b0 fs/inode.c:1805 dentry_unlink_inode+0x22a/0x240 fs/dcache.c:401 d_delete+0x76/0xf0 fs/dcache.c:2565 d_delete_notify include/linux/fsnotify.h:261 [inline] vfs_rmdir+0x1a0/0x2f0 fs/namei.c:4213 do_rmdir+0x194/0x310 fs/namei.c:4259 __do_sys_unlinkat fs/namei.c:4437 [inline] __se_sys_unlinkat fs/namei.c:4431 [inline] __x64_sys_unlinkat+0xa4/0xb0 fs/namei.c:4431 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000000000000001 -> 0x0000000000020080 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 3081 Comm: syz-executor.5 Tainted: G W 6.4.0-syzkaller-12069-gc17414a273b8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ==================================================================