CVE-2026-53279

drm/gma500/oaktrail_lvds: fix hang on init failure

State: Published
Severity: Not scored
Published: Jun 26, 2026
Updated: Jun 26, 2026
Reserved: Jun 9, 2026

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 5fe9f505d8578852c30668567bc3ce52e776e8c7Affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 4e04b564c005c9900643c56656d751ad677889beAffected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 7877f7e231a8bd5c817af1491276550a5e195cd7Affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before ab9256936b58eb178caddcf5b5b1638f079909d2Affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before f6fc44af3bbd5ab0fb6bdec6f47decca11b38425Affected a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 657a091ab6d01d0091b77660c75cfed573c9a53eAffected
LinuxLinux	6.0Affected before 6.0Not affected 6.1.175 through 6.1.Not affected 6.6.141 through 6.6.Not affected 6.12.91 through 6.12.Not affected 6.18.33 through 6.18.Not affected 7.0.10 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 5fe9f505d8578852c30668567bc3ce52e776e8c7Affected
a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 4e04b564c005c9900643c56656d751ad677889beAffected
a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 7877f7e231a8bd5c817af1491276550a5e195cd7Affected
a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before ab9256936b58eb178caddcf5b5b1638f079909d2Affected
a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before f6fc44af3bbd5ab0fb6bdec6f47decca11b38425Affected
a57ebfc0b4da16a3f36bfebb158198aab3e340f8 to before 657a091ab6d01d0091b77660c75cfed573c9a53eAffected

LinuxLinux

6.0Affected
before 6.0Not affected
6.1.175 through 6.1.*Not affected
6.6.141 through 6.6.*Not affected
6.12.91 through 6.12.*Not affected
6.18.33 through 6.18.*Not affected
7.0.10 through 7.0.*Not affected
7.1 and laterNot affected

References

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