This is a qcacld-2.0 to qcacld-3.0 propagation.
Function hdd_extscan_start_fill_bucket_channel_spec() is used to
transfer EXTSCAN bucket parameters from a netlink message to an
internal representation. A code analysis tool identified a potential
buffer overflow of the per-bucket channel list in this function. In
reality this is a false positive since there is other logic which
limits the total number of channels across all buckets, and this logic
will prevent overflow of the channel list for a single bucket since
they use the same limit.
However this presents a code maintenance issue since a potential
overflow could be introduced in the future if a change is made to
allow the total number of channels across all buckets to exceed the
number of channels allowed in a single bucket.
To protect against this possibility, as well as make the code analysis
tool happy, add an additional check to make sure the per-bucket
channel list does not overflow.
Change-Id: Ifdf2de918d8b2c5a907e833e7bc42315b607e5a5
CRs-Fixed: 922047
56951330f8