kobject: 'holders' (ffff888092ab2e00): kobject_add_internal: parent: 'loop0', set: '' RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5053c4b6d4 R13: 00000000004c5d8d R14: 00000000004dc1c8 R15: 0000000000000004 general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 16351 Comm: kworker/u4:2 Not tainted 4.14.159-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound flush_to_ldisc task: ffff88804631a480 task.stack: ffff88820d050000 RIP: 0010:skb_put+0x31/0x1c0 net/core/skbuff.c:1694 RSP: 0018:ffff88820d057b48 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880a9b4c680 RCX: 0000000000000000 RDX: 0000000000000019 RSI: 0000000000000004 RDI: 0000000000000000 RBP: ffff88820d057b70 R08: 0000000000000025 R09: ffff88804631adc0 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000004 R14: ffff888081327b62 R15: 00000000000000c8 FS: 0000000000000000(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd12e0fd9c CR3: 000000020441a000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_put_data include/linux/skbuff.h:2095 [inline] ll_recv+0x501/0x1010 drivers/bluetooth/hci_ll.c:416 hci_uart_tty_receive+0x1f4/0x4d0 drivers/bluetooth/hci_ldisc.c:616 tty_ldisc_receive_buf+0x14d/0x1a0 drivers/tty/tty_buffer.c:459 tty_port_default_receive_buf+0x73/0xa0 drivers/tty/tty_port.c:37 receive_buf drivers/tty/tty_buffer.c:475 [inline] flush_to_ldisc+0x1ec/0x400 drivers/tty/tty_buffer.c:527 process_one_work+0x863/0x1600 kernel/workqueue.c:2114 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: 41 56 41 55 41 89 f5 41 54 49 89 fc 4d 8d bc 24 c8 00 00 00 53 e8 80 f0 46 fc 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 protocol 88fb is buggy, dev hsr_slave_0 RIP: skb_put+0x31/0x1c0 net/core/skbuff.c:1694 RSP: ffff88820d057b48 protocol 88fb is buggy, dev hsr_slave_0 kobject: 'slaves' (ffff88804b130100): kobject_add_internal: parent: 'loop0', set: '' Bluetooth: Can't allocate mem for new packet kobject: 'loop0' (ffff8880a53ea5e0): kobject_uevent_env ---[ end trace a650f9a653f7df0b ]---