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.
Metrics
No CVSS score has been published yet.
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9, < 8288136f508e78eb3563e7073975999cf225a2f9; >= 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9, < 82c9039c8ebb715753a40434df714f865a3aec9c; >= 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9, < 4cd55c609e85ae2313248ef1a33619a3eef44a16; >= 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9, < 11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3; >= 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9, < d23564955811da493f34412d7de60fa268c8cb50 |
| Linux | Linux | 4.11 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.7, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.6, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.7, < * |
References
- https://git.kernel.org/stable/c/11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3
- https://git.kernel.org/stable/c/4cd55c609e85ae2313248ef1a33619a3eef44a16
- https://git.kernel.org/stable/c/8288136f508e78eb3563e7073975999cf225a2f9
- https://git.kernel.org/stable/c/82c9039c8ebb715753a40434df714f865a3aec9c
- https://git.kernel.org/stable/c/d23564955811da493f34412d7de60fa268c8cb50
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
Timeline
- Published
- Feb 4, 2026
- Last modified
- Nov 10, 2026
- NVD status
- Deferred