drm/gma500/oaktrail_lvds: fix hang on init failure

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Summary

CVECVE-2026-53279
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 20:17:19 UTC
Updated2026-07-08 03:58:26 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/gma500/oaktrail_lvds: fix hang on init failure The LVDS init code looks up an I2C adapter using i2c_get_adapter() and tries to read the EDID before falling back to allocating and registering its own adapter. The error handling does not separate these cases so on a late init failure it will try to deregister and free also an adapter that had previously been registered. Since i2c_get_adapter() takes another reference to the adapter, deregistration hangs indefinitely while waiting for the reference to be released. Fix this by only destroying adapters allocated during LVDS init on errors.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001720000 probability, percentile 0.068830000 (date 2026-07-04)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 5fe9f505d8578852c30668567bc3ce52e776e8c7 git Not specified
CNA Linux Linux affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 4e04b564c005c9900643c56656d751ad677889be git Not specified
CNA Linux Linux affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 7877f7e231a8bd5c817af1491276550a5e195cd7 git Not specified
CNA Linux Linux affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 ab9256936b58eb178caddcf5b5b1638f079909d2 git Not specified
CNA Linux Linux affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 f6fc44af3bbd5ab0fb6bdec6f47decca11b38425 git Not specified
CNA Linux Linux affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 657a091ab6d01d0091b77660c75cfed573c9a53e git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.1.175 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.141 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.91 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/657a091ab6d01d0091b77660c75cfed573c9a53e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ab9256936b58eb178caddcf5b5b1638f079909d2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5fe9f505d8578852c30668567bc3ce52e776e8c7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7877f7e231a8bd5c817af1491276550a5e195cd7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f6fc44af3bbd5ab0fb6bdec6f47decca11b38425 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4e04b564c005c9900643c56656d751ad677889be 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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