Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-23338

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
25/03/2026
Last modified:
23/04/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amdgpu/userq: Do not allow userspace to trivially triger kernel warnings<br /> <br /> Userspace can either deliberately pass in the too small num_fences, or the<br /> required number can legitimately grow between the two calls to the userq<br /> wait ioctl. In both cases we do not want the emit the kernel warning<br /> backtrace since nothing is wrong with the kernel and userspace will simply<br /> get an errno reported back. So lets simply drop the WARN_ONs.<br /> <br /> (cherry picked from commit 2c333ea579de6cc20ea7bc50e9595ef72863e65c)

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.16.1 (including) 6.18.17 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.19 (including) 6.19.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.16:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools