Linux Kernel: smscufx ioctl UFX_IOCTL_REPORT_DAMAGE memory copy flaw
CVE-2026-23236 Published on March 4, 2026
fbdev: smscufx: properly copy ioctl memory to kernelspace
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.
Products Associated with CVE-2026-23236
Want to know whenever a new CVE is published for Linux Kernel? stack.watch will email you.
Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 061cfeb560aa3ddc174153dbe5be9d0b55eb7248 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 6167af934f956d3ae1e06d61f45cd0d1004bbe1a is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below a0321e6e58facb39fe191caa0e52ed9aab6a48fe is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 0634e8d650993602fc5b389ff7ac525f6542e141 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 52917e265aa5f848212f60fc50fc504d8ef12866 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 1c008ad0f0d1c1523902b9cdb08e404129677bfc is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 120adae7b42faa641179270c067864544a50ab69 is affected.
- Version 5.10.251, <= 5.10.* is unaffected.
- Version 5.15.201, <= 5.15.* is unaffected.
- Version 6.1.164, <= 6.1.* is unaffected.
- Version 6.6.127, <= 6.6.* is unaffected.
- Version 6.12.74, <= 6.12.* is unaffected.
- Version 6.18.13, <= 6.18.* is unaffected.
- Version 6.19.3, <= 6.19.* is unaffected.
- Version 7.0-rc1, <= * is unaffected.