========================= WARNING: held lock freed! 6.10.0-rc1-syzkaller-00267-gcc8ed4d0a848-dirty #0 Not tainted ------------------------- kworker/u9:3/6458 is freeing memory ffff88802f212000-ffff88802f2127ff, with a lock still held there! ffff88802f212258 (sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1602 [inline] ffff88802f212258 (sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+.}-{0:0}, at: l2cap_sock_recv_cb+0x58/0x6f0 net/bluetooth/l2cap_sock.c:1488 3 locks held by kworker/u9:3/6458: #0: ffff888079178148 ((wq_completion)hci1#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888079178148 ((wq_completion)hci1#2){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90004347d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90004347d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88802f212258 (sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1602 [inline] #2: ffff88802f212258 (sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+.}-{0:0}, at: l2cap_sock_recv_cb+0x58/0x6f0 net/bluetooth/l2cap_sock.c:1488 stack backtrace: CPU: 0 PID: 6458 Comm: kworker/u9:3 Not tainted 6.10.0-rc1-syzkaller-00267-gcc8ed4d0a848-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: hci1 hci_rx_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_freed_lock_bug kernel/locking/lockdep.c:6538 [inline] debug_check_no_locks_freed+0x3c5/0x4a0 kernel/locking/lockdep.c:6571 slab_free_hook mm/slub.c:2159 [inline] slab_free mm/slub.c:4436 [inline] kfree+0xfa/0x360 mm/slub.c:4557 sk_prot_free net/core/sock.c:2116 [inline] __sk_destruct+0x476/0x5f0 net/core/sock.c:2208 sock_put include/net/sock.h:1879 [inline] l2cap_sock_recv_cb+0x596/0x6f0 net/bluetooth/l2cap_sock.c:1546 l2cap_conless_channel net/bluetooth/l2cap_core.c:6780 [inline] l2cap_recv_frame+0x8b6d/0x10670 net/bluetooth/l2cap_core.c:6833 hci_acldata_packet net/bluetooth/hci_core.c:3842 [inline] hci_rx_work+0x50f/0xca0 net/bluetooth/hci_core.c:4079 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Bluetooth: hci1: command tx timeout