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CVE-2026-68206
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-08-10T13:20:08.273 · Last modified 2026-08-10T13:20:08.273

Summary

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-ctrls: validate HEVC active reference counts HEVC slice parameters are shared stateless V4L2 controls, but the common validation path does not verify the active L0/L1 reference counts before driver-specific code consumes them. The original report came from Cedrus, but the active count bounds are not Cedrus-specific. Validate them in the common HEVC slice control path so stateless HEVC drivers get the same basic guarantees as soon as the control is queued. Do not reject ref_idx_l0/ref_idx_l1 entries here. Existing userspace may use out-of-range sentinel values such as 0xff for missing references, and some hardware can use that information for concealment. Keep this common check limited to the active referenc

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.