CVE-2026-74707

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Source
https://cve.org/CVERecord?id=CVE-2026-74707
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74707.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74707
Downstream
BELL (1)
DEBIAN (1)
MGASA (2)
UBUNTU (1)
Published
2026-08-22T15:33:05Z
Modified
2026-10-24T02:30:43Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
xsk: validate metadata when processing requests
Details

In the Linux kernel, the following vulnerability has been resolved:

xsk: validate metadata when processing requests

The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata between those operations and bypass the original validation.

Validate the metadata in xsk_tx_metadata_request() and use the resulting flags snapshot for every feature check. Read request fields once so all zero-copy drivers process only values observed after successful validation.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74707.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ca4419f15abd19ba8be1e109661b60f9f5b6c9f0
Fixed
5fd121971912dee2f5af1efec64462ac722deb17
Fixed
0cc7aa6e0d19027fdd42e6fbd156267ac1e3bbba
Fixed
849b1664dbda1cf6c63e0fd4f9dec23782b8c851
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6.14.2
Fixed
6.15
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d9d736c416c9a85f84e15435ba82a177262e745b

Affected versions

v6.*
v6.14.10
v6.14.11
v6.14.2
v6.14.3
v6.14.4
v6.14.5
v6.14.6
v6.14.7
v6.14.8
v6.14.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74707.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.15.0
Fixed
6.18.45
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74707.json"