------------[ cut here ]------------ WARNING: CPU: 0 PID: 5953 at kernel/rcu/sync.c:177 rcu_sync_dtor+0x128/0x180 kernel/rcu/sync.c:177 Modules linked in: CPU: 0 UID: 0 PID: 5953 Comm: kworker/0:4 Not tainted 6.17.0-rc1-syzkaller-00029-g91325f31afc1 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: events destroy_super_work RIP: 0010:rcu_sync_dtor+0x128/0x180 kernel/rcu/sync.c:177 Code: 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 84 c0 74 04 3c 03 7e 3f 8b 03 85 c0 74 9b 90 0f 0b 90 eb 95 90 <0f> 0b 90 e9 10 ff ff ff 90 0f 0b 90 e9 4c ff ff ff 48 89 df e8 1f RSP: 0018:ffffc90004337bf8 EFLAGS: 00010246 RAX: 0000000000000002 RBX: ffff88804cfd6358 RCX: ffffffff8233b0b2 RDX: 0000000000000000 RSI: ffffffff8c162a80 RDI: ffff88804cfd6358 RBP: ffff88804cfd63c0 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000241 R11: 0000000000002c10 R12: ffff88804cfd6000 R13: 0000000000000241 R14: ffffffff8e4709ac R15: ffffc90004337d10 FS: 0000000000000000(0000) GS:ffff8881246c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556fdf2608 CR3: 0000000065457000 CR4: 0000000000350ef0 Call Trace: percpu_free_rwsem kernel/locking/percpu-rwsem.c:42 [inline] percpu_free_rwsem+0x33/0xa0 kernel/locking/percpu-rwsem.c:33 destroy_super_work+0xe3/0x150 fs/super.c:283 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245