CVE-2026-23236
fbdev: smscufx: properly copy ioctl memory to kernelspace
CVE-2026-23236 is fixed in 46 products on 1 platform, first by DEBIAN-CVE-2026-23236, released March 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0023
13th percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.55.1.150700.17.33.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-livepatch-SLE15-SP7_Update_15 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.164-1 | DEBIAN-CVE-2026-23236 | Mar 4, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.74-2 | DEBIAN-CVE-2026-23236 | Mar 4, 2026 |
| linux · Debian 14 | 6.18.13-1 | DEBIAN-CVE-2026-23236 | Mar 4, 2026 |
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