general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 22 Comm: kworker/u4:1 Not tainted 4.14.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound flush_to_ldisc task: ffff8880a9a1e5c0 task.stack: ffff8880a9a28000 RIP: 0010:skb_put+0x2b/0x1a0 net/core/skbuff.c:1694 RSP: 0018:ffff8880a9a2fb98 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880a5ac25c0 RCX: 0000000000000000 RDX: 0000000000000019 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8880a5ac26b8 R09: ffffffff8a05dff8 R10: ffff8880a9a1eee0 R11: ffff8880a9a1e5c0 R12: 0000000000000001 R13: 000000000000000a R14: 00000000000000c8 R15: 000000000000005e FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efff6c72518 CR3: 0000000056ed6000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_put_data include/linux/skbuff.h:2097 [inline] bcsp_unslip_one_byte drivers/bluetooth/hci_bcsp.c:450 [inline] bcsp_recv+0x92e/0x1530 drivers/bluetooth/hci_bcsp.c:612 hci_uart_tty_receive+0x1ec/0x4c0 drivers/bluetooth/hci_ldisc.c:616 tty_ldisc_receive_buf+0x12e/0x170 drivers/tty/tty_buffer.c:459 tty_port_default_receive_buf+0x6e/0xa0 drivers/tty/tty_port.c:37 receive_buf drivers/tty/tty_buffer.c:475 [inline] flush_to_ldisc+0x1dd/0x3f0 drivers/tty/tty_buffer.c:527 process_one_work+0x813/0x1540 kernel/workqueue.c:2114 worker_thread+0x5d1/0x1070 kernel/workqueue.c:2248 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: 41 56 41 55 41 54 41 89 f4 55 48 89 fd 4c 8d b5 c8 00 00 00 53 e8 76 08 61 fc 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RIP: skb_put+0x2b/0x1a0 net/core/skbuff.c:1694 RSP: ffff8880a9a2fb98 Bluetooth: hci1: Frame reassembly failed (-84) mkiss: ax0: crc mode is auto. Bluetooth: Can't allocate mem for new packet ---[ end trace 3d9f083438c20a71 ]---