------------[ cut here ]------------ WARNING: CPU: 1 PID: 2151 at kernel/rcu/sync.c:177 rcu_sync_dtor+0xcd/0x180 kernel/rcu/sync.c:177 Modules linked in: CPU: 1 UID: 0 PID: 2151 Comm: kworker/1:2 Not tainted 6.15.0-syzkaller-09161-g0f70f5b08a47 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: events destroy_super_work RIP: 0010:rcu_sync_dtor+0xcd/0x180 kernel/rcu/sync.c:177 Code: 18 e8 07 c4 00 00 43 0f b6 44 25 00 84 c0 0f 85 82 00 00 00 83 3b 00 75 1f 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 90 <0f> 0b 90 e9 66 ff ff ff 90 0f 0b 90 eb 8a 90 0f 0b 90 eb db 89 d9 RSP: 0018:ffffc90004b679e8 EFLAGS: 00010246 RAX: 0000000000000002 RBX: ffff888075464358 RCX: eeafbdb75972a400 RDX: 0000000000000000 RSI: ffffffff8be19260 RDI: ffff888075464358 RBP: 0000000000000219 R08: ffffffff8dfdf8cf R09: 1ffffffff1bfbf19 R10: dffffc0000000000 R11: fffffbfff1bfbf1a R12: dffffc0000000000 R13: 1ffff1100ea8c86b R14: ffff888075464358 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125d99000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff7f042fc0 CR3: 000000000df36000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: percpu_free_rwsem+0x40/0x80 kernel/locking/percpu-rwsem.c:42 destroy_super_work+0xee/0x130 fs/super.c:283 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245