CVE-2026-68180
Low risk· EPSS 10%Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
In the Linux kernel, the Intel TH driver has a reference leak for MSC output devices. intel_th_output_open() takes a reference that is not released on file close, causing a memory leak on every MSC output open. The fix moves the reference drop to intel_th_msc_release().
Risk Assessment
The risk includes gradual exhaustion of system resources, potentially leading to instability or denial of service.
Recommendation
Update the Linux kernel to a version containing the fix that eliminates the reference leak in the Intel TH driver.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: intel_th: fix MSC output device reference leak intel_th_output_open() looks up the output device with bus_find_device_by_devt(), which returns the device with a reference that must be dropped after use. commit 95fc36a234da ("intel_th: fix device leak on output open()") attempted to drop the reference from intel_th_output_release(). However, a successful open replaces file->f_op with the output driver file operations before returning, so close runs the output driver release callback instead. For MSC outputs, close runs intel_th_msc_release(), which only removes the per-file iterator and does not drop the device reference taken by intel_th_output_open(). Consequently, every successful MSC output open leaks one device reference. Drop the device reference from intel_th_msc_release(), which is the release path actually used for MSC output files. Remove the now-unused intel_th_output_release() callback from intel_th_output_fops.