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

Vulnerability from cvelistv5 – Published: 2026-02-04 16:04 – Updated: 2026-02-09 08:37
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
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)
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{
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          "programFiles": [
            "drivers/net/hyperv/netvsc_drv.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hv_netvsc: reject RSS hash key programming without RX indirection table\n\nRSS configuration requires a valid RX indirection table. When the device\nreports a single receive queue, rndis_filter_device_add() does not\nallocate an indirection table, accepting RSS hash key updates in this\nstate leads to a hang.\n\nFix this by gating netvsc_set_rxfh() on ndc-\u003erx_table_sz and return\n-EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device\ncapabilities and prevents incorrect behavior."
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        "dateUpdated": "2026-02-09T08:37:52.262Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23054",
    "datePublished": "2026-02-04T16:04:23.396Z",
    "dateReserved": "2026-01-13T15:37:45.951Z",
    "dateUpdated": "2026-02-09T08:37:52.262Z",
    "state": "PUBLISHED"
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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