R13: 00000000004c5310 R14: 00000000004da8b0 R15: 0000000000000004
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
CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.86-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound flush_to_ldisc
RIP: 0010:skb_put+0x35/0x1e0 net/core/skbuff.c:1697
Code: 89 f5 41 54 49 89 fc 53 4d 8d b4 24 c8 00 00 00 48 83 ec 08 e8 7c 5b bc fb 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 58
netlink: 64 bytes leftover after parsing attributes in process `syz-executor.0'.
RSP: 0018:ffff8880aa357b28 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88808eb83cc0 RCX: ffffffff852fa954
RDX: 0000000000000019 RSI: ffffffff85aebc74 RDI: 0000000000000000
RBP: ffff8880aa357b58 R08: ffff8880aa33e1c0 R09: ffffed1015d04733
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000
R13: 0000000000000001 R14: 00000000000000c8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000081fd0000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_put_data include/linux/skbuff.h:2109 [inline]
 bcsp_unslip_one_byte drivers/bluetooth/hci_bcsp.c:451 [inline]
 bcsp_recv+0x9ae/0x13a0 drivers/bluetooth/hci_bcsp.c:612
 hci_uart_tty_receive+0x225/0x530 drivers/bluetooth/hci_ldisc.c:620
Invalid UDP bearer configuration
 tty_ldisc_receive_buf+0x15f/0x1c0 drivers/tty/tty_buffer.c:460
Enabling of bearer <udp:syz0> rejected, failed to enable media
 tty_port_default_receive_buf+0x7d/0xb0 drivers/tty/tty_port.c:38
 receive_buf drivers/tty/tty_buffer.c:476 [inline]
 flush_to_ldisc+0x222/0x390 drivers/tty/tty_buffer.c:528
 process_one_work+0x989/0x1750 kernel/workqueue.c:2153
Bluetooth: Can't allocate mem for new packet
 worker_thread+0x98/0xe40 kernel/workqueue.c:2296
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace 6b7031cf51b13105 ]---
RIP: 0010:skb_put+0x35/0x1e0 net/core/skbuff.c:1697
Code: 89 f5 41 54 49 89 fc 53 4d 8d b4 24 c8 00 00 00 48 83 ec 08 e8 7c 5b bc fb 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 58
RSP: 0018:ffff8880aa357b28 EFLAGS: 00010202
kobject: 'loop5' (00000000692c3f26): kobject_uevent_env
RAX: dffffc0000000000 RBX: ffff88808eb83cc0 RCX: ffffffff852fa954
RDX: 0000000000000019 RSI: ffffffff85aebc74 RDI: 0000000000000000
RBP: ffff8880aa357b58 R08: ffff8880aa33e1c0 R09: ffffed1015d04733
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000
R13: 0000000000000001 R14: 00000000000000c8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000028e7978 CR3: 000000005a898000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400