xsk: require at least 16 bytes of TX metadata
In the Linux kernel, the following vulnerability has been resolved: xsk: require at least 16 bytes of TX metadata AF_XDP accepts a TX metadata length as small as eight bytes, but every supported request needs the flags plus at least one eight-byte request field. Such short metadata also lets the kernel read beyond the registered area. Require 16 bytes rather than sizeof(struct xsk_tx_metadata) to preserve compatibility with applications that do not use launch-time metadata.
CVE-2026-74710
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-2026-74710
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": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
"lessThan": "21b8536aee819792f1b4b38b9aacf2a073025d49",
"versionType": "git"
},
{
"status": "affected",
"version": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
"lessThan": "642c6e73fce17fdca93a5793c4d22359fda866d7",
"versionType": "git"
},
{
"status": "affected",
"version": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
"lessThan": "cfb9d2976b277e554e28c165e3eff4b4a8ea10bd",
"versionType": "git"
},
{
"status": "affected",
"version": "341ac980eab90ac1f6c22ee9f9da83ed9604d899",
"lessThan": "1bb30b181d9f0484e141f8411e15ed906d5c6780",
"versionType": "git"
}
],
"programFiles": [
"net/xdp/xdp_umem.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.104",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.45",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.9",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/xdp/xdp_umem.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74710
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #34280 · Revision 1
- Added to Heist Feed
- Publisher date