CVE-2026-23338

Source
https://cve.org/CVERecord?id=CVE-2026-23338
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23338.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23338
Downstream
Published
2026-03-25T10:27:27.377Z
Modified
2026-04-02T13:12:22.015932Z
Summary
drm/amdgpu/userq: Do not allow userspace to trivially triger kernel warnings
Details

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

drm/amdgpu/userq: Do not allow userspace to trivially triger kernel warnings

Userspace can either deliberately pass in the too small numfences, or the required number can legitimately grow between the two calls to the userq wait ioctl. In both cases we do not want the emit the kernel warning backtrace since nothing is wrong with the kernel and userspace will simply get an errno reported back. So lets simply drop the WARNONs.

(cherry picked from commit 2c333ea579de6cc20ea7bc50e9595ef72863e65c)

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23338.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
a292fdecd72834b3bec380baa5db1e69e7f70679
Fixed
1753f5f81ab60a553287f9ee659a6ac363adf8d7
Fixed
7321302edca3a349ddaea689df95b986beee6c4a
Fixed
7b7d7693a55d606d700beb9549c9f7f0e5d9c24f

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23338.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.16.0
Fixed
6.18.17
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.7

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23338.json"