Description

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 5

• git.kernel.org https://git.kernel.org/stable/c/11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3
• git.kernel.org https://git.kernel.org/stable/c/4cd55c609e85ae2313248ef1a33619a3eef44a16
• git.kernel.org https://git.kernel.org/stable/c/8288136f508e78eb3563e7073975999cf225a2f9
• git.kernel.org https://git.kernel.org/stable/c/82c9039c8ebb715753a40434df714f865a3aec9c
• git.kernel.org https://git.kernel.org/stable/c/d23564955811da493f34412d7de60fa268c8cb50

Remediation