CVE-2026-68206
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:36 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/3299c3905f3fb439ebd892658b87bc76c93ae116
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"9a998cc1c348769262d433acb7d238c5fac4b2e0","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"dbaf0e0023e2f9332c5164822def7f80b7d2c5ef","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"3068ab802fc98b121dcb451e1f7f4d338ffc7a19","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"b01df98a6669d2b67d8aed816021b327fd905998","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"afbe4bc252d90a6f8fad869b06d5430f615f22f9","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"3299c3905f3fb439ebd892658b87bc76c93ae116","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"9a998cc1c348769262d433acb7d238c5fac4b2e0","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"dbaf0e0023e2f9332c5164822def7f80b7d2c5ef","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"3068ab802fc98b121dcb451e1f7f4d338ffc7a19","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"b01df98a6669d2b67d8aed816021b327fd905998","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"afbe4bc252d90a6f8fad869b06d5430f615f22f9","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/17/2026 1:18:22 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"9a998cc1c348769262d433acb7d238c5fac4b2e0","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"dbaf0e0023e2f9332c5164822def7f80b7d2c5ef","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"3068ab802fc98b121dcb451e1f7f4d338ffc7a19","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"b01df98a6669d2b67d8aed816021b327fd905998","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"afbe4bc252d90a6f8fad869b06d5430f615f22f9","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"9a998cc1c348769262d433acb7d238c5fac4b2e0","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"dbaf0e0023e2f9332c5164822def7f80b7d2c5ef","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"3068ab802fc98b121dcb451e1f7f4d338ffc7a19","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"b01df98a6669d2b67d8aed816021b327fd905998","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"afbe4bc252d90a6f8fad869b06d5430f615f22f9","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/13/2026 7:17:24 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
New CVE Received from kernel.org
8/10/2026 9:20:08 AM
Action
Type
Old Value
New Value
Added
Description
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.
Added
Reference
https://git.kernel.org/stable/c/3068ab802fc98b121dcb451e1f7f4d338ffc7a19
Added
Reference
https://git.kernel.org/stable/c/9a998cc1c348769262d433acb7d238c5fac4b2e0
Added
Reference
https://git.kernel.org/stable/c/afbe4bc252d90a6f8fad869b06d5430f615f22f9
Added
Reference
https://git.kernel.org/stable/c/b01df98a6669d2b67d8aed816021b327fd905998
Added
Reference
https://git.kernel.org/stable/c/dbaf0e0023e2f9332c5164822def7f80b7d2c5ef
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"9a998cc1c348769262d433acb7d238c5fac4b2e0","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"dbaf0e0023e2f9332c5164822def7f80b7d2c5ef","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"3068ab802fc98b121dcb451e1f7f4d338ffc7a19","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"b01df98a6669d2b67d8aed816021b327fd905998","versionType":"git","status":"affected"},{"version":"d395a78db9eabd12633b39e05c80e803543b6590","lessThan":"afbe4bc252d90a6f8fad869b06d5430f615f22f9","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/v4l2-core/v4l2-ctrls-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68206 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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