------------[ cut here ]------------ WARNING: CPU: 0 PID: 1780 at kernel/rcu/sync.c:177 rcu_sync_dtor+0xd8/0x178 kernel/rcu/sync.c:190 Modules linked in: CPU: 0 UID: 0 PID: 1780 Comm: kworker/0:2 Not tainted 6.14.0-rc6-syzkaller-g0a6021b3fc20 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events destroy_super_work pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_sync_dtor+0xd8/0x178 kernel/rcu/sync.c:190 lr : percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:42 sp : ffff80009fde79d0 x29: ffff80009fde79d0 x28: ffff80008fbbd600 x27: 1fffe000196d5b72 x26: ffff0000cb334710 x25: ffff0000cb334718 x24: dfff800000000000 x23: 000000000000012d x22: 1fffe00018d8ec6a x21: dfff800000000000 x20: ffff0000c6c76350 x19: ffff0000c6c76350 x18: 1fffe000366f1886 x17: ffff80008fbbd000 x16: ffff8000832b615c x15: 0000000000000001 x14: 1ffff00011f8948d x13: 0000000000000000 x12: 0000000000000000 x11: ffff700011f8948e x10: 0000000000000003 x9 : 0000000000000003 x8 : 0000000000000002 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000001 x3 : ffff800080d05080 x2 : 0000000000000001 x1 : ffff80008bdf77a0 x0 : ffff0000c6c76350 Call trace: rcu_sync_dtor+0xd8/0x178 kernel/rcu/sync.c:190 (P) percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:42 destroy_super_work+0xec/0x154 fs/super.c:282 process_one_work+0x810/0x1638 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3400 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 92136 hardirqs last enabled at (92135): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (92136): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (92118): [] local_bh_enable+0xc/0x2c include/linux/bottom_half.h:32 softirqs last disabled at (92114): [] local_bh_disable+0xc/0x2c include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1780 at kernel/rcu/sync.c:180 rcu_sync_dtor+0xe0/0x178 kernel/rcu/sync.c:190 Modules linked in: CPU: 0 UID: 0 PID: 1780 Comm: kworker/0:2 Tainted: G W 6.14.0-rc6-syzkaller-g0a6021b3fc20 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events destroy_super_work pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_sync_dtor+0xe0/0x178 kernel/rcu/sync.c:190 lr : spin_lock_irq include/linux/spinlock.h:376 [inline] lr : rcu_sync_dtor+0x58/0x178 kernel/rcu/sync.c:179 sp : ffff80009fde79d0 x29: ffff80009fde79d0 x28: ffff80008fbbd600 x27: 1fffe000196d5b72 x26: ffff0000cb334710 x25: ffff0000cb334718 x24: dfff800000000000 x23: 000000000000012d x22: 1fffe00018d8ec6a x21: dfff800000000000 x20: ffff0000c6c76358 x19: ffff0000c6c76350 x18: 1fffe000366f1886 x17: ffff80008fbbd000 x16: ffff800080481b44 x15: ffff700013fbcf20 x14: 1ffff00013fbcf20 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700013fbcf20 x10: 1ffff00013fbcf20 x9 : 0000000000000000 x8 : 0000000000000001 x7 : ffff8000805047b8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800080481c6c x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000001 Call trace: rcu_sync_dtor+0xe0/0x178 kernel/rcu/sync.c:190 (P) percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:42 destroy_super_work+0xec/0x154 fs/super.c:282 process_one_work+0x810/0x1638 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3400 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 92652 hardirqs last enabled at (92651): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (92651): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (92652): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (92652): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (92646): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (92646): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (92139): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1780 at kernel/rcu/sync.c:188 rcu_sync_dtor+0x108/0x178 Modules linked in: CPU: 0 UID: 0 PID: 1780 Comm: kworker/0:2 Tainted: G W 6.14.0-rc6-syzkaller-g0a6021b3fc20 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events destroy_super_work pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_sync_dtor+0x108/0x178 lr : rcu_sync_dtor+0xb0/0x178 kernel/rcu/sync.c:187 sp : ffff80009fde79d0 x29: ffff80009fde79d0 x28: ffff80008fbbd600 x27: 1fffe000196d5b72 x26: ffff0000cb334710 x25: ffff0000cb334718 x24: dfff800000000000 x23: 0000000000000002 x22: 1fffe00018d8ec6a x21: dfff800000000000 x20: ffff0000c6c76358 x19: ffff0000c6c76350 x18: 1fffe000366f1886 x17: ffff80008fbbd000 x16: ffff800080bf6604 x15: 0000000000000001 x14: 1ffff00013fbcf14 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700013fbcf15 x10: 1ffff00013fbcf14 x9 : 8d8fe0b9b8a2b300 x8 : 0000000000000002 x7 : ffff80008b7d7978 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b7d7cd4 x2 : 0000000000000001 x1 : 0000000000000008 x0 : 0000000000000001 Call trace: rcu_sync_dtor+0x108/0x178 (P) percpu_free_rwsem+0x48/0x88 kernel/locking/percpu-rwsem.c:42 destroy_super_work+0xec/0x154 fs/super.c:282 process_one_work+0x810/0x1638 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3400 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 92702 hardirqs last enabled at (92701): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (92701): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202 hardirqs last disabled at (92702): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (92680): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (92680): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (92657): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]---