qcacld-3.0: Fix OOB read in iw_hdd_set_var_ints_getnone

From the IOCTL command WE_POLICY_MANAGER_PCL_CMD, we get the cds
concurrency mode as argument and pass it to cds_get_pcl to get
the pcl channel list. This concurrency mode parameter is used as
the array index to retrive the enum cds_pcl_type. If this value
is greater than CDS_MAX_NUM_OF_MODE an OOB read will occur in
iw_hdd_set_var_ints_getnone.

Add check to validate the input cds mode argument against the macro
CDS_MAX_NUM_OF_MODE. Return error if it is violated.

Change-Id: Iaa79d9698e0074a31a9c3f2396bd06d436d1e349
CRs-Fixed: 2216048

0 files changed, 0 insertions, 0 deletions