net/ionic: avoid OOB TX partner lookup for hwstamp RXQ
In the Linux kernel, the following vulnerability has been resolved: net/ionic: avoid OOB TX partner lookup for hwstamp RXQ The dedicated hardware timestamp RX queue is allocated with q->index equal to lif->ionic->nrxqs_per_lif. The normal txqcqs array only contains the regular queue pairs, so using that index to set rxq->partner can read one entry past txqcqs[] and then write through the derived pointer. Only link RX/TX partners for normal queue-pair indexes. Leave the hwstamp RX queue unpaired, and make the XDP_TX path abort cleanly if an RX queue has no TX partner.
CVE-2026-80779
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-2026-80779
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": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
"lessThan": "881a805a8029ba48c0ce81c6674910f8d83f7afb",
"versionType": "git"
},
{
"status": "affected",
"version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
"lessThan": "39fc615e355b65b8d43be30da57aa95ae6eaf688",
"versionType": "git"
},
{
"status": "affected",
"version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
"lessThan": "f3868046e8e2e761d4d943a232bd109ff22a7d5b",
"versionType": "git"
},
{
"status": "affected",
"version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
"lessThan": "ea081b4435515ac7177eb598a3c0678d1b9e7911",
"versionType": "git"
},
{
"status": "affected",
"version": "8eeed8373e1cca836799bf8e4a05cffa8e444908",
"lessThan": "d92255b405fb6f5acca408239ccd742e0a42c9cb",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/pensando/ionic/ionic_lif.c",
"drivers/net/ethernet/pensando/ionic/ionic_txrx.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.106",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.47",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.11",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2.1",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/pensando/ionic/ionic_lif.c",
"drivers/net/ethernet/pensando/ionic/ionic_txrx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80779
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #34797 · Revision 1
- Added to Heist Feed
- Publisher date