Peilin Ye 8885bb0621 AX.25: Prevent out-of-bounds read in ax25_sendmsg()
Checks on `addr_len` and `usax->sax25_ndigis` are insufficient.
ax25_sendmsg() can go out of bounds when `usax->sax25_ndigis` equals to 7
or 8. Fix it.

It is safe to remove `usax->sax25_ndigis > AX25_MAX_DIGIS`, since
`addr_len` is guaranteed to be less than or equal to
`sizeof(struct full_sockaddr_ax25)`

Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-22 18:06:49 -07:00
..
2020-07-08 08:27:56 +02:00
2020-07-01 15:49:11 -07:00
2020-07-20 17:52:25 -07:00
2020-05-29 13:10:39 -07:00