Bug 2439907 (CVE-2026-23196)

Summary: CVE-2026-23196 kernel: HID: Intel-thc-hid: Intel-thc: Add safety check for reading DMA buffer
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A NULL pointer dereference was found in the Intel THC (Touch Host Controller) HID driver. The driver reads from a DMA buffer without first checking if the buffer is ready, which can result in accessing a NULL pointer and crashing the kernel.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-02-14 17:02:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

HID: Intel-thc-hid: Intel-thc: Add safety check for reading DMA buffer

Add DMA buffer readiness check before reading DMA buffer to avoid
unexpected NULL pointer accessing.