In the Linux kernel, the following vulnerability has been resolved:
net: hv_netvsc: reject RSS hash key programming without RX indirection table
RSS configuration requires a valid RX indirection table. When the device
reports a single receive queue, rndis_filter_device_add() does not
allocate an indirection table, accepting RSS hash key updates in this
state leads to a hang. Fix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return
-EOPNOTSUPP when the table is absent.
This aligns set_rxfh with the device
capabilities and prevents incorrect behavior.
References 4
https://git.kernel.org/stable/c/11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4cd55c609e85ae2313248ef1a33619a3eef44a16
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/82c9039c8ebb715753a40434df714f865a3aec9c
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d23564955811da493f34412d7de60fa268c8cb50
416baaa9-dc9f-4396-8d5f-8c081fb06d67