net: hv_netvsc: reject RSS hash key programming without RX indirection table
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.
CVE-2026-23054
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-23054
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "962f3fee83a4ef9010ae84dc43ae7aecb572e2a9",
"lessThan": "8288136f508e78eb3563e7073975999cf225a2f9",
"versionType": "git"
},
{
"status": "affected",
"version": "962f3fee83a4ef9010ae84dc43ae7aecb572e2a9",
"lessThan": "82c9039c8ebb715753a40434df714f865a3aec9c",
"versionType": "git"
},
{
"status": "affected",
"version": "962f3fee83a4ef9010ae84dc43ae7aecb572e2a9",
"lessThan": "4cd55c609e85ae2313248ef1a33619a3eef44a16",
"versionType": "git"
},
{
"status": "affected",
"version": "962f3fee83a4ef9010ae84dc43ae7aecb572e2a9",
"lessThan": "11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3",
"versionType": "git"
},
{
"status": "affected",
"version": "962f3fee83a4ef9010ae84dc43ae7aecb572e2a9",
"lessThan": "d23564955811da493f34412d7de60fa268c8cb50",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/hyperv/netvsc_drv.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.162",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.122",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.67",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.7",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/hyperv/netvsc_drv.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23054
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #27196 · Revision 1
- Added to Heist Feed
- Publisher date