------------[ cut here ]------------ WARNING: CPU: 0 PID: 4778 at kernel/rcu/sync.c:193 rcu_sync_dtor+0x14c/0x170 kernel/rcu/sync.c:193 Modules linked in: CPU: 0 PID: 4778 Comm: kworker/0:18 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 : ffff8000220a7ad0 x29: ffff8000220a7ad0 x28: ffff0001b41a0100 x27: ffff0000cfe2e418 x26: ffff0000eb07c848 x25: ffff0001b41a4e00 x24: dfff800000000000 x23: 1fffe0001d60f909 x22: 1fffe0001d60f87f x21: dfff800000000000 x20: ffff0000eb07c394 x19: ffff0000eb07c390 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800011ac23e0 x15: 0000000000000001 x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000023d3bed7 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000007 x8 : 0000000000000001 x7 : ffff80000821a1b8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : ffff8000120c8040 x0 : ffff0000eb07c390 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: 172328 hardirqs last enabled at (172327): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (172327): [] _raw_spin_unlock_irq+0x9c/0x134 kernel/locking/spinlock.c:202 hardirqs last disabled at (172328): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (172314): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (172314): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:736 [inline] softirqs last enabled at (172314): [] nsim_dev_trap_report_work+0x610/0x90c drivers/net/netdevsim/dev.c:762 softirqs last disabled at (172312): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (172312): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:732 [inline] softirqs last disabled at (172312): [] nsim_dev_trap_report_work+0x58c/0x90c drivers/net/netdevsim/dev.c:762 ---[ end trace 18004fefa1ea3be6 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4778 at kernel/rcu/sync.c:194 rcu_sync_dtor+0xd8/0x170 kernel/rcu/sync.c:206 Modules linked in: CPU: 0 PID: 4778 Comm: kworker/0:18 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 : ffff8000220a7ad0 x29: ffff8000220a7ad0 x28: ffff0001b41a0100 x27: ffff0000cfe2e418 x26: ffff0000eb07c848 x25: ffff0001b41a4e00 x24: dfff800000000000 x23: 1fffe0001d60f909 x22: 1fffe0001d60f872 x21: dfff800000000000 x20: ffff0000eb07c394 x19: ffff0000eb07c390 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800011ac23e0 x15: 0000000000000001 x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000023d3bed7 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000007 x8 : 0000000000000002 x7 : ffff80000821a1b8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : ffff8000120c8040 x0 : ffff0000eb07c390 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: 172330 hardirqs last enabled at (172329): [] el1_dbg+0x6c/0x80 arch/arm64/kernel/entry-common.c:399 hardirqs last disabled at (172330): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (172314): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (172314): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:736 [inline] softirqs last enabled at (172314): [] nsim_dev_trap_report_work+0x610/0x90c drivers/net/netdevsim/dev.c:762 softirqs last disabled at (172312): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (172312): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:732 [inline] softirqs last disabled at (172312): [] nsim_dev_trap_report_work+0x58c/0x90c drivers/net/netdevsim/dev.c:762 ---[ end trace 18004fefa1ea3be7 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4778 at kernel/rcu/sync.c:204 rcu_sync_dtor+0xe0/0x170 kernel/rcu/sync.c:206 Modules linked in: CPU: 0 PID: 4778 Comm: kworker/0:18 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 : ffff8000220a7ad0 x29: ffff8000220a7ad0 x28: ffff0001b41a0100 x27: ffff0000cfe2e418 x26: ffff0000eb07c848 x25: ffff0001b41a4e00 x24: dfff800000000000 x23: 0000000000000002 x22: 1fffe0001d60f872 x21: dfff800000000000 x20: ffff0000eb07c398 x19: ffff0000eb07c390 x18: ffff8000220a7240 x17: 1fffe00036831b8e x16: ffff8000088d66a0 x15: 0000000000000004 x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000000001 x11: 1ffff00004414f34 x10: 0000000000000000 x9 : a4588ff277c5c800 x8 : 0000000000000002 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800011b88df4 x2 : 0000000000000000 x1 : ffff0000c61851c0 x0 : ffff0000c61851c0 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: 172344 hardirqs last enabled at (172343): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (172343): [] _raw_spin_unlock_irq+0x9c/0x134 kernel/locking/spinlock.c:202 hardirqs last disabled at (172344): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (172314): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (172314): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:736 [inline] softirqs last enabled at (172314): [] nsim_dev_trap_report_work+0x610/0x90c drivers/net/netdevsim/dev.c:762 softirqs last disabled at (172312): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (172312): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:732 [inline] softirqs last disabled at (172312): [] nsim_dev_trap_report_work+0x58c/0x90c drivers/net/netdevsim/dev.c:762 ---[ end trace 18004fefa1ea3be8 ]---