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Linux CVE-2026-23236

HIGH
2026-03-04 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Linux Information Disclosure
7.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.3 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
SUSE
HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch released
Apr 09, 2026 - 20:30 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:05 vuln.today
CVE Published
Mar 04, 2026 - 15:16 nvd
HIGH 7.3

DescriptionCVE.org

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

fbdev: smscufx: properly copy ioctl memory to kernelspace

The UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from userspace to kernelspace, and instead directly references the memory, which can cause problems if invalid data is passed from userspace. Fix this all up by correctly copying the memory before accessing it within the kernel.

AnalysisAI

The Linux kernel fbdev smscufx driver fails to properly copy user-supplied data to kernel memory in the UFX_IOCTL_REPORT_DAMAGE ioctl handler, instead directly referencing userspace memory which can be manipulated or invalidated. A local attacker with appropriate privileges can exploit this to cause a denial of service by triggering kernel memory access violations or crashes. No patch is currently available for this medium-severity vulnerability.

Technical ContextAI

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

fbdev: smscufx: properly copy ioctl memory to kernelspace

The UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from userspace to kernelspace, and instead directly references the memory, which can cause problems if invalid data is passed from userspace. Fix this all up by correctly copying the memory before accessing it within the kernel.

RemediationAI

Monitor vendor advisories for a patch.

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Vendor StatusVendor

SUSE

Severity: High
Product Status
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Availability Extension 15 SP7 Fixed
SUSE Linux Enterprise High Availability Extension 15 SP7 Fixed

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CVE-2026-23236 vulnerability details – vuln.today
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