Bluetooth: Invalid header checksum Bluetooth: Invalid header checksum kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access Bluetooth: Invalid header checksum general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7099 Comm: syz-executor.3 Not tainted 4.14.170-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809ed1e2c0 task.stack: ffff8880a9c78000 RIP: 0010:skb_put+0x28/0x1e0 net/core/skbuff.c:1694 RSP: 0018:ffff8880a9c7f9a0 EFLAGS: 00010286 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000019 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff8880a9c7f9c8 R08: ffff88809ed1eb88 R09: 0000000000007200 R10: 0000000000000000 R11: ffff88809ed1e2c0 R12: 0000000000000001 R13: 00000000000000c8 R14: ffff8880a9c7fbb8 R15: dffffc0000000000 FS: 00007f2cf0da5700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000007c85c8 CR3: 00000000966db000 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] h5_unslip_one_byte drivers/bluetooth/hci_h5.c:490 [inline] h5_recv+0x2a3/0x410 drivers/bluetooth/hci_h5.c:526 hci_uart_tty_receive+0x1ce/0x460 drivers/bluetooth/hci_ldisc.c:616 tiocsti drivers/tty/tty_io.c:2186 [inline] tty_ioctl+0x625/0x1260 drivers/tty/tty_io.c:2572 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x180/0xfb0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x74/0x80 fs/ioctl.c:692 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459819 RSP: 002b:00007f2cf0da4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459819 RDX: 0000000020000080 RSI: 0000000000005412 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2cf0da56d4 R13: 00000000004c408a R14: 00000000004d7ff0 R15: 00000000ffffffff Code: 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 55 4c 8d af c8 00 00 00 41 54 4c 89 ea 53 48 89 fb 48 c1 ea 03 48 83 ec 10 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RIP: skb_put+0x28/0x1e0 net/core/skbuff.c:1694 RSP: ffff8880a9c7f9a0 Bluetooth: Invalid header checksum ---[ end trace 6304fedb883c509e ]---