------------[ cut here ]------------ WARNING: CPU: 0 PID: 4257 at kernel/rcu/sync.c:193 rcu_sync_dtor+0x14c/0x170 kernel/rcu/sync.c:193 Modules linked in: CPU: 0 PID: 4257 Comm: kworker/0:8 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events destroy_super_work pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_sync_dtor+0x14c/0x170 kernel/rcu/sync.c:193 lr : percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:40 sp : ffff800020407ad0 x29: ffff800020407ad0 x28: ffff0001b41a0100 x27: ffff0000cfa2a818 x26: ffff0000c839c848 x25: ffff0001b41a4e00 x24: dfff800000000000 x23: 1fffe00019073909 x22: 1fffe0001907387f x21: dfff800000000000 x20: ffff0000c839c394 x19: ffff0000c839c390 x18: 1fffe00036831b8e x17: 1fffe00036831b8e x16: ffff800011ac23e0 x15: ffff800014b5ef40 x14: 1ffff0000295806a x13: dfff800000000000 x12: 00000000cc386491 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000007 x8 : 0000000000000001 x7 : ffff80000821a1b8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : ffff8000120c8040 x0 : ffff0000c839c390 Call trace: rcu_sync_dtor+0x14c/0x170 kernel/rcu/sync.c:193 percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:40 destroy_super_work+0x20/0x48 fs/super.c:164 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 34614 hardirqs last enabled at (34613): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (34613): [] _raw_spin_unlock_irq+0x9c/0x134 kernel/locking/spinlock.c:202 hardirqs last disabled at (34614): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (34562): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (34562): [] switchdev_deferred_dequeue net/switchdev/switchdev.c:48 [inline] softirqs last enabled at (34562): [] switchdev_deferred_process+0x274/0x2c0 net/switchdev/switchdev.c:64 softirqs last disabled at (34560): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (34560): [] switchdev_deferred_dequeue net/switchdev/switchdev.c:39 [inline] softirqs last disabled at (34560): [] switchdev_deferred_process+0x200/0x2c0 net/switchdev/switchdev.c:64 ---[ end trace caf2d0f132f26386 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4257 at kernel/rcu/sync.c:194 rcu_sync_dtor+0xd8/0x170 kernel/rcu/sync.c:206 Modules linked in: CPU: 0 PID: 4257 Comm: kworker/0:8 Tainted: G W 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events destroy_super_work pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_sync_dtor+0xd8/0x170 kernel/rcu/sync.c:206 lr : percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:40 sp : ffff800020407ad0 x29: ffff800020407ad0 x28: ffff0001b41a0100 x27: ffff0000cfa2a818 x26: ffff0000c839c848 x25: ffff0001b41a4e00 x24: dfff800000000000 x23: 1fffe00019073909 x22: 1fffe00019073872 x21: dfff800000000000 x20: ffff0000c839c394 x19: ffff0000c839c390 x18: 1fffe00036831b8e x17: 1fffe00036831b8e x16: ffff800011ac23e0 x15: ffff800014b5ef40 x14: 1ffff0000295806a x13: dfff800000000000 x12: 00000000cc386491 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000007 x8 : 0000000000000002 x7 : ffff80000821a1b8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : ffff8000120c8040 x0 : ffff0000c839c390 Call trace: rcu_sync_dtor+0xd8/0x170 kernel/rcu/sync.c:206 percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:40 destroy_super_work+0x20/0x48 fs/super.c:164 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 34618 hardirqs last enabled at (34617): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (34617): [] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (34618): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (34562): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (34562): [] switchdev_deferred_dequeue net/switchdev/switchdev.c:48 [inline] softirqs last enabled at (34562): [] switchdev_deferred_process+0x274/0x2c0 net/switchdev/switchdev.c:64 softirqs last disabled at (34560): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (34560): [] switchdev_deferred_dequeue net/switchdev/switchdev.c:39 [inline] softirqs last disabled at (34560): [] switchdev_deferred_process+0x200/0x2c0 net/switchdev/switchdev.c:64 ---[ end trace caf2d0f132f26387 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4257 at kernel/rcu/sync.c:204 rcu_sync_dtor+0xe0/0x170 kernel/rcu/sync.c:206 Modules linked in: CPU: 0 PID: 4257 Comm: kworker/0:8 Tainted: G W 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events destroy_super_work pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_sync_dtor+0xe0/0x170 kernel/rcu/sync.c:206 lr : rcu_sync_dtor+0xb0/0x170 kernel/rcu/sync.c:203 sp : ffff800020407ad0 x29: ffff800020407ad0 x28: ffff0001b41a0100 x27: ffff0000cfa2a818 x26: ffff0000c839c848 x25: ffff0001b41a4e00 x24: dfff800000000000 x23: 0000000000000002 x22: 1fffe00019073872 x21: dfff800000000000 x20: ffff0000c839c398 x19: ffff0000c839c390 x18: ffff800020407240 x17: 0000000000010000 x16: ffff8000088d66a0 x15: 0000000000020b4c x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000000001 x11: 1ffff00004080f34 x10: 0000000000000000 x9 : f5fc6ced55ffc000 x8 : 0000000000000002 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800011b88df4 x2 : 0000000000000000 x1 : ffff0000cd668000 x0 : ffff0000cd668000 Call trace: rcu_sync_dtor+0xe0/0x170 kernel/rcu/sync.c:206 percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:40 destroy_super_work+0x20/0x48 fs/super.c:164 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 34632 hardirqs last enabled at (34631): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (34631): [] _raw_spin_unlock_irq+0x9c/0x134 kernel/locking/spinlock.c:202 hardirqs last disabled at (34632): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (34562): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (34562): [] switchdev_deferred_dequeue net/switchdev/switchdev.c:48 [inline] softirqs last enabled at (34562): [] switchdev_deferred_process+0x274/0x2c0 net/switchdev/switchdev.c:64 softirqs last disabled at (34560): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (34560): [] switchdev_deferred_dequeue net/switchdev/switchdev.c:39 [inline] softirqs last disabled at (34560): [] switchdev_deferred_process+0x200/0x2c0 net/switchdev/switchdev.c:64 ---[ end trace caf2d0f132f26388 ]---