RAX: ffffffffffffffda RBX: 00007f65440936d4 RCX: 000000000045c849 RDX: 0000000020000100 RSI: 0000000000005412 RDI: 0000000000000003 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000582 R14: 00000000004c8177 R15: 0000000000000000 general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 22279 Comm: kworker/u4:8 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound flush_to_ldisc task: ffff88808f9a25c0 task.stack: ffff88820f8f0000 RIP: 0010:skb_put+0x2b/0x1a0 net/core/skbuff.c:1694 RSP: 0018:ffff88820f8f7b90 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888079b58080 RCX: 0000000000000000 RDX: 0000000000000019 RSI: 0000000000000004 RDI: 0000000000000000 audit: type=1800 audit(1584947318.686:288): pid=1682 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="qat_adf_ctl" dev="sda1" ino=16964 res=0 RBP: 0000000000000000 R08: 0000000000000025 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004 R13: ffff888079b58090 R14: 00000000000000c8 R15: ffff8880a0ea5222 FS: 0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001a11b80 CR3: 000000005661f000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_put_data include/linux/skbuff.h:2097 [inline] ll_recv+0x4fe/0x1040 drivers/bluetooth/hci_ll.c:416 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:2116 worker_thread+0x5d1/0x1070 kernel/workqueue.c:2250 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 46 0a 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: ffff88820f8f7b90 Bluetooth: Can't allocate mem for new packet ---[ end trace ac8e2f49d0e9031f ]---