kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 22 Comm: kworker/u4:1 Not tainted 4.14.175-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:ffff8880a9a2fb90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888092254980 RCX: ffff88808fc91780
RDX: 0000000000000019 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 0000000000000000 R08: 000000000000527e R09: ffffffff8a084c70
R10: ffff8880a9a1eee0 R11: ffff8880a9a1e5c0 R12: 0000000000000004
R13: ffff888092254990 R14: 00000000000000c8 R15: ffff88808ec164a0
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558152a78a80 CR3: 0000000052b7a000 CR4: 00000000001406f0
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
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=22531 comm=syz-executor.1
 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 66 e9 60 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: ffff8880a9a2fb90
audit: type=1804 audit(1585899011.706:118): pid=22534 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir521696900/syzkaller.aJ4BXy/470/bus" dev="sda1" ino=15813 res=1
---[ end trace 21793d034812a03a ]---