------------[ cut here ]------------ WARNING: CPU: 1 PID: 7951 at kernel/workqueue.c:2257 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 7951 at kernel/workqueue.c:2257 is_chained_work kernel/workqueue.c:2199 [inline] WARNING: CPU: 1 PID: 7951 at kernel/workqueue.c:2257 __queue_work+0xe68/0x1308 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 7951 Comm: syz.0.254 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe68/0x1308 kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:2199 [inline] lr : __queue_work+0xe68/0x1308 kernel/workqueue.c:2256 sp : ffff8000a1077930 x29: ffff8000a1077980 x28: dfff800000000000 x27: ffff70001420ef68 x26: dfff800000000000 x25: ffff0000d50cd800 x24: 0000000000000008 x23: 1fffe0001b085b59 x22: ffff0000d50cd9c0 x21: 0000000000400140 x20: ffff0000d842dac0 x19: ffff0000e8238a80 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000830d1d70 x15: 0000000000000001 x14: 1fffe0001d047150 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001d047151 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d842dac0 x7 : ffff8000895cebd0 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800080253614 x2 : ffff0000e8238a80 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] (P) is_chained_work kernel/workqueue.c:2199 [inline] (P) __queue_work+0xe68/0x1308 kernel/workqueue.c:2256 (P) current_wq_worker kernel/workqueue_internal.h:69 [inline] (L) is_chained_work kernel/workqueue.c:2199 [inline] (L) __queue_work+0xe68/0x1308 kernel/workqueue.c:2256 (L) queue_work_on+0xe0/0x1a0 kernel/workqueue.c:2390 queue_work include/linux/workqueue.h:662 [inline] hci_recv_frame+0x4c4/0x600 net/bluetooth/hci_core.c:2946 vhci_get_user drivers/bluetooth/hci_vhci.c:511 [inline] vhci_write+0x2a8/0x3c8 drivers/bluetooth/hci_vhci.c:607 new_sync_write fs/read_write.c:590 [inline] vfs_write+0x920/0xcf4 fs/read_write.c:683 ksys_write+0x15c/0x26c fs/read_write.c:736 __do_sys_write fs/read_write.c:748 [inline] __se_sys_write fs/read_write.c:745 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:745 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 130 hardirqs last enabled at (129): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (129): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (130): [] queue_work_on+0x50/0x1a0 kernel/workqueue.c:2386 softirqs last enabled at (114): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (112): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- Bluetooth: hci0: Opcode 0x0c1a failed: -4 Bluetooth: hci1: Opcode 0x0c1a failed: -4 Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci3: Opcode 0x0c1a failed: -4 Bluetooth: hci3: Opcode 0x0406 failed: -4 Bluetooth: hci3: Opcode 0x0406 failed: -4 Bluetooth: hci2: Opcode 0x0c1a failed: -4 Bluetooth: hci2: Opcode 0x0406 failed: -4 Bluetooth: hci2: Opcode 0x0406 failed: -4 Bluetooth: hci4: Opcode 0x0c1a failed: -4 Bluetooth: hci4: Opcode 0x0406 failed: -4 Bluetooth: hci4: Opcode 0x0406 failed: -4 Bluetooth: hci5: Opcode 0x0c1a failed: -4 Bluetooth: hci5: Opcode 0x0406 failed: -4 Bluetooth: hci5: Opcode 0x0406 failed: -4 Bluetooth: hci6: Opcode 0x0c1a failed: -4 Bluetooth: hci6: Opcode 0x0406 failed: -4 Bluetooth: hci6: Opcode 0x0406 failed: -4