CVE-2026-68255
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:
drm/virtio: bound EDID block reads to the response buffer
virtio_get_edid_block() validates the read offset only against the
device-supplied resp->size field, never against the fixed-size resp->edid
array. The EDID block index is driven by the device-supplied extension
count, so a malicious virtio-gpu backend can advertise a large size
together with a high block count and read far past the array into adjacent
kernel memory, which is then surfaced in the parsed EDID (an out-of-bounds
read / info leak).
Also reject any read whose end exceeds the size of the edid array.
Conforming EDID responses stay within the array and are unaffected.
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:N/UI:N/S:U/C:H/I:N/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 1:20:39 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/3f506a85a905b080cadc029a1651a310479090a6
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"9fc2a017c5d597937e0c28b9a9669844aa796c42","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"2757e6e803092cf0aeaf4b735e16b5d3bdc705c5","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"35be0e2c6862abcd5e5f5445261f1fd910d4a9b4","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"375c1934ef0196d3b6d3a1eae3232bef8dae7bf7","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","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/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"3f506a85a905b080cadc029a1651a310479090a6","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"9fc2a017c5d597937e0c28b9a9669844aa796c42","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"2757e6e803092cf0aeaf4b735e16b5d3bdc705c5","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"35be0e2c6862abcd5e5f5445261f1fd910d4a9b4","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"375c1934ef0196d3b6d3a1eae3232bef8dae7bf7","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","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 1:18:27 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"9fc2a017c5d597937e0c28b9a9669844aa796c42","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"2757e6e803092cf0aeaf4b735e16b5d3bdc705c5","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"35be0e2c6862abcd5e5f5445261f1fd910d4a9b4","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"375c1934ef0196d3b6d3a1eae3232bef8dae7bf7","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","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-rc2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"9fc2a017c5d597937e0c28b9a9669844aa796c42","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"2757e6e803092cf0aeaf4b735e16b5d3bdc705c5","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"35be0e2c6862abcd5e5f5445261f1fd910d4a9b4","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"375c1934ef0196d3b6d3a1eae3232bef8dae7bf7","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","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 7:17:26 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
New CVE Received from kernel.org
8/10/2026 9:20:14 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/virtio: bound EDID block reads to the response buffer
virtio_get_edid_block() validates the read offset only against the
device-supplied resp->size field, never against the fixed-size resp->edid
array. The EDID block index is driven by the device-supplied extension
count, so a malicious virtio-gpu backend can advertise a large size
together with a high block count and read far past the array into adjacent
kernel memory, which is then surfaced in the parsed EDID (an out-of-bounds
read / info leak).
Also reject any read whose end exceeds the size of the edid array.
Conforming EDID responses stay within the array and are unaffected.
Added
Reference
https://git.kernel.org/stable/c/2757e6e803092cf0aeaf4b735e16b5d3bdc705c5
Added
Reference
https://git.kernel.org/stable/c/35be0e2c6862abcd5e5f5445261f1fd910d4a9b4
Added
Reference
https://git.kernel.org/stable/c/375c1934ef0196d3b6d3a1eae3232bef8dae7bf7
Added
Reference
https://git.kernel.org/stable/c/4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd
Added
Reference
https://git.kernel.org/stable/c/9fc2a017c5d597937e0c28b9a9669844aa796c42
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"9fc2a017c5d597937e0c28b9a9669844aa796c42","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"2757e6e803092cf0aeaf4b735e16b5d3bdc705c5","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"35be0e2c6862abcd5e5f5445261f1fd910d4a9b4","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"375c1934ef0196d3b6d3a1eae3232bef8dae7bf7","versionType":"git","status":"affected"},{"version":"b4b01b4995fb15b55a2d067eb405917f5ab32709","lessThan":"4e1a53892ba7f8a3e1da6bfc53c83ae7c812dccd","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/virtio/virtgpu_vq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","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-rc2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68255 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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