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CVE-2026-23054 (GCVE-0-2026-23054)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:04 – Updated: 2026-09-08 08:44
VLAI
Title
net: hv_netvsc: reject RSS hash key programming without RX indirection table
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 8288136f508e78eb3563e7073975999cf225a2f9 (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 82c9039c8ebb715753a40434df714f865a3aec9c (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 4cd55c609e85ae2313248ef1a33619a3eef44a16 (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3 (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < d23564955811da493f34412d7de60fa268c8cb50 (git)
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Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
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    "redhat_vex": {
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      "current_release_date": "2026-06-28T07:18:24+00:00",
      "cve": "CVE-2026-23054",
      "id": "CVE-2026-23054",
      "initial_release_date": "2026-02-04T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: hv_netvsc: reject RSS hash key programming without RX indirection table",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23054.json",
      "version": "3"
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  }
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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