Answer in brief
CVE-2026-68206 records a Unknown severity vulnerability in media: v4l2-ctrls: validate HEVC active reference counts. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d395a78db9eabd12633b39e05c80e803543b6590 <9a998cc1c348769262d433acb7d238c5fac4b2e0 || >=d395a78db9eabd12633b39e05c80e803543b6590 <dbaf0e0023e2f9332c5164822def7f80b7d2c5ef || >=d395a78db9eabd12633b39e05c80e803543b6590 <3068ab802fc98b121dcb451e1f7f4d338ffc7a19 || >=d395a78db9eabd12633b39e05c80e803543b6590 <b01df98a6669d2b67d8aed816021b327fd905998 || >=d395a78db9eabd12633b39e05c80e803543b6590 <afbe4bc252d90a6f8fad869b06d5430f615f22f9 | 9a998cc1c348769262d433acb7d238c5fac4b2e0, dbaf0e0023e2f9332c5164822def7f80b7d2c5ef, 3068ab802fc98b121dcb451e1f7f4d338ffc7a19, b01df98a6669d2b67d8aed816021b327fd905998, afbe4bc252d90a6f8fad869b06d5430f615f22f9 |
| Linux/Linuxgeneric | 5.14 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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 reference counts.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68206 records a Unknown severity vulnerability in media: v4l2-ctrls: validate HEVC active reference counts. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d395a78db9eabd12633b39e05c80e803543b6590 <9a998cc1c348769262d433acb7d238c5fac4b2e0 || >=d395a78db9eabd12633b39e05c80e803543b6590 <dbaf0e0023e2f9332c5164822def7f80b7d2c5ef || >=d395a78db9eabd12633b39e05c80e803543b6590 <3068ab802fc98b121dcb451e1f7f4d338ffc7a19 || >=d395a78db9eabd12633b39e05c80e803543b6590 <b01df98a6669d2b67d8aed816021b327fd905998 || >=d395a78db9eabd12633b39e05c80e803543b6590 <afbe4bc252d90a6f8fad869b06d5430f615f22f9 | 9a998cc1c348769262d433acb7d238c5fac4b2e0, dbaf0e0023e2f9332c5164822def7f80b7d2c5ef, 3068ab802fc98b121dcb451e1f7f4d338ffc7a19, b01df98a6669d2b67d8aed816021b327fd905998, afbe4bc252d90a6f8fad869b06d5430f615f22f9 |
| Linux/Linuxgeneric | 5.14 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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 reference counts.
Quoted source text, attributed separately from HOL analysis.