This function is called from ethtool_set_rxfh() and "*rss_context"
comes from the user. Add some bounds checking to prevent memory
corruption.
Fixes: 81a4362016e7 ("octeontx2-pf: Add RSS multi group support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
+ if (*rss_context != ETH_RXFH_CONTEXT_ALLOC &&
+ *rss_context >= MAX_RSS_GROUPS)
+ return -EINVAL;
+
rss = &pfvf->hw.rss_info;
if (!rss->enable) {