Bug 2444387 (CVE-2026-23236) - CVE-2026-23236 kernel: fbdev: smscufx: properly copy ioctl memory to kernelspace
Summary: CVE-2026-23236 kernel: fbdev: smscufx: properly copy ioctl memory to kernelspace
Keywords:
Status: NEW
Alias: CVE-2026-23236
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-04 15:01 UTC by OSIDB Bzimport
Modified: 2026-03-04 15:32 UTC (History)
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Description OSIDB Bzimport 2026-03-04 15:01:29 UTC
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.


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