CVE-2026-68204
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: vivid: check for vb2_is_busy() when toggling caps
The vivid_update_format_cap/out() functions must only be called if the
capture/output queue are not busy. But for the controls that select
the CROP/COMPOSE/SCALE capability that is not checked.
Only when streaming starts will they be set to 'grabbed' and it is
impossible to change the control, but between REQBUFS and STREAMON you
are still allowed to set these controls. Since vivid_update_format_cap/out
will change the format, this can cause unexpected results.
Besides adding these checks, also add a WARN_ON in
vivid_update_format_cap/out() if the queue is busy.
I'm 90% certain that this is the cause of this syzbot bug:
https://syzkaller.appspot.com/bug?extid=dac8f5eaa46837e97b89
But since we never have reproducers, it is hard to be certain. In any case,
these checks are needed regardless.
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/0a820f03727b509b887f3216a574062948761f34
Added
Reference
https://git.kernel.org/stable/c/6a5bc8aea111ccbca71ef2b9c868d5c81f2e89de
Added
Reference
https://git.kernel.org/stable/c/bbc96bc75de0fcd9bb6ac48798b206e3b09ec865
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"a9cd0e8fb0b21faaa71199d9d3feb305c18ff576","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"abaec6747304581f8d4a9936352fa10e13325f07","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"492c97cb50feaa60ccd7792d3d6b904ed8ec61bf","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"daf2d92669b4a659d805d88d811161c70cd325ee","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"c2d1a2130c93f6d758af58590b86b2254c7a1dec","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.18","status":"affected"},{"version":"0","lessThan":"3.18","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"}]}]
Record truncated, showing 2048 of 2709 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"0a820f03727b509b887f3216a574062948761f34","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"bbc96bc75de0fcd9bb6ac48798b206e3b09ec865","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"6a5bc8aea111ccbca71ef2b9c868d5c81f2e89de","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"a9cd0e8fb0b21faaa71199d9d3feb305c18ff576","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"abaec6747304581f8d4a9936352fa10e13325f07","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"492c97cb50feaa60ccd7792d3d6b904ed8ec61bf","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"daf2d92669b4a659d805d88d811161c70cd325ee","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"c2d1a2130c93f6d758af58590b86b2254c7a1dec","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.18","status":"affected"},{"version":"0","lessThan":"3.18","versionType":"semver","status":"unaffected"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"ve
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/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"a9cd0e8fb0b21faaa71199d9d3feb305c18ff576","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"abaec6747304581f8d4a9936352fa10e13325f07","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"492c97cb50feaa60ccd7792d3d6b904ed8ec61bf","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"daf2d92669b4a659d805d88d811161c70cd325ee","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"c2d1a2130c93f6d758af58590b86b2254c7a1dec","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.18","status":"affected"},{"version":"0","lessThan":"3.18","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/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"a9cd0e8fb0b21faaa71199d9d3feb305c18ff576","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"abaec6747304581f8d4a9936352fa10e13325f07","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"492c97cb50feaa60ccd7792d3d6b904ed8ec61bf","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"daf2d92669b4a659d805d88d811161c70cd325ee","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"c2d1a2130c93f6d758af58590b86b2254c7a1dec","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.18","status":"affected"},{"version":"0","lessThan":"3.18","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: vivid: check for vb2_is_busy() when toggling caps
The vivid_update_format_cap/out() functions must only be called if the
capture/output queue are not busy. But for the controls that select
the CROP/COMPOSE/SCALE capability that is not checked.
Only when streaming starts will they be set to 'grabbed' and it is
impossible to change the control, but between REQBUFS and STREAMON you
are still allowed to set these controls. Since vivid_update_format_cap/out
will change the format, this can cause unexpected results.
Besides adding these checks, also add a WARN_ON in
vivid_update_format_cap/out() if the queue is busy.
I'm 90% certain that this is the cause of this syzbot bug:
https://syzkaller.appspot.com/bug?extid=dac8f5eaa46837e97b89
But since we never have reproducers, it is hard to be certain. In any case,
these checks are needed regardless.
Added
Reference
https://git.kernel.org/stable/c/492c97cb50feaa60ccd7792d3d6b904ed8ec61bf
Added
Reference
https://git.kernel.org/stable/c/a9cd0e8fb0b21faaa71199d9d3feb305c18ff576
Added
Reference
https://git.kernel.org/stable/c/abaec6747304581f8d4a9936352fa10e13325f07
Added
Reference
https://git.kernel.org/stable/c/c2d1a2130c93f6d758af58590b86b2254c7a1dec
Added
Reference
https://git.kernel.org/stable/c/daf2d92669b4a659d805d88d811161c70cd325ee
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"a9cd0e8fb0b21faaa71199d9d3feb305c18ff576","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"abaec6747304581f8d4a9936352fa10e13325f07","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"492c97cb50feaa60ccd7792d3d6b904ed8ec61bf","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"daf2d92669b4a659d805d88d811161c70cd325ee","versionType":"git","status":"affected"},{"version":"73c3f48230cda01402ae189b05d56f1f7e0d53c9","lessThan":"c2d1a2130c93f6d758af58590b86b2254c7a1dec","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/media/test-drivers/vivid/vivid-ctrls.c","drivers/media/test-drivers/vivid/vivid-vid-cap.c","drivers/media/test-drivers/vivid/vivid-vid-out.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.18","status":"affected"},{"version":"0","lessThan":"3.18","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-2026-68204 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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