Buffer I/O error on dev nbd1, logical block 1, async page read Buffer I/O error on dev nbd1, logical block 2, async page read Buffer I/O error on dev nbd1, logical block 3, async page read Bluetooth: Can't allocate mem for new packet print_req_error: I/O error, dev nbd1, sector 0 general protection fault: 0000 [#1] PREEMPT SMP KASAN Buffer I/O error on dev nbd1, logical block 0, async page read CPU: 1 PID: 9789 Comm: kworker/u4:1 Not tainted 4.19.118-syzkaller #0 print_req_error: I/O error, dev nbd1, sector 2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound flush_to_ldisc RIP: 0010:skb_put+0x2d/0x1c0 net/core/skbuff.c:1697 Code: 56 41 55 41 54 41 89 f4 55 48 89 fd 4c 8d ad c8 00 00 00 53 e8 94 42 d0 fb 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 42 Buffer I/O error on dev nbd1, logical block 1, async page read RSP: 0000:ffff88804a1e7b70 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880a55f7a00 RCX: ffffffff851cadc4 RDX: 0000000000000019 RSI: ffffffff8597670c RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88804c78e000 R09: ffffed1015cc4733 R10: ffffed1015cc4732 R11: ffff8880ae623993 R12: 0000000000000001 print_req_error: I/O error, dev nbd1, sector 0 R13: 00000000000000c8 R14: ffff8880a55f7af8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb83d244db8 CR3: 000000008bd8c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 print_req_error: I/O error, dev nbd1, sector 0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_put_data include/linux/skbuff.h:2111 [inline] bcsp_unslip_one_byte drivers/bluetooth/hci_bcsp.c:451 [inline] bcsp_recv+0x9f9/0x1420 drivers/bluetooth/hci_bcsp.c:613 hci_uart_tty_receive+0x21d/0x520 drivers/bluetooth/hci_ldisc.c:620 tty_ldisc_receive_buf+0x14a/0x190 drivers/tty/tty_buffer.c:460 ldm_validate_partition_table(): Disk read failed. tty_port_default_receive_buf+0x78/0xa0 drivers/tty/tty_port.c:38 receive_buf drivers/tty/tty_buffer.c:476 [inline] flush_to_ldisc+0x21d/0x390 drivers/tty/tty_buffer.c:528 process_one_work+0x91f/0x1640 kernel/workqueue.c:2155 worker_thread+0x96/0xe20 kernel/workqueue.c:2298 Dev nbd1: unable to read RDB block 0 kthread+0x34a/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: nbd1: unable to read partition table ---[ end trace ae4f87ddcad9aa72 ]--- RIP: 0010:skb_put+0x2d/0x1c0 net/core/skbuff.c:1697 Code: 56 41 55 41 54 41 89 f4 55 48 89 fd 4c 8d ad c8 00 00 00 53 e8 94 42 d0 fb 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 42 RSP: 0000:ffff88804a1e7b70 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880a55f7a00 RCX: ffffffff851cadc4 RDX: 0000000000000019 RSI: ffffffff8597670c RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88804c78e000 R09: ffffed1015cc4733 ldm_validate_partition_table(): Disk read failed. R10: ffffed1015cc4732 R11: ffff8880ae623993 R12: 0000000000000001 R13: 00000000000000c8 R14: ffff8880a55f7af8 R15: 0000000000000000 Dev nbd1: unable to read RDB block 0 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 nbd1: unable to read partition table CR2: 0000000000b90004 CR3: 0000000050b0f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400