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Advisory severityMedium5.5Vendor: LowRed Hat Linux

Medium [CVE-2026-53279] fix hang on init failure

This medium-severity Red Hat Linux advisory covers CVE-2026-53279 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat package: kernel-rt.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-53279 Source published Source updated

VulniPulse record published Record updated

CVE-2026-53279
Affected products & platforms
Red Hat LinuxLinux Kernel
Open source advisory

Summary

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. This issue occurs during the initialization of the Low-Voltage Differential Signaling (LVDS) display interface.

Due to improper error handling, the system may attempt to deregister an I2C adapter that is still in use, causing the system to hang indefinitely. This can lead to a Denial of Service (DoS), making the system unresponsive.

Red Hat severity: Low — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-833.

Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8. Red Hat does not currently list a fixing RHSA for this CVE.

Affected products named by the advisory: Red Hat package: kernel-rt.

Is CVE-2026-53279 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-53279 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-53279?

The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · medium-confidence parse· fetched 16 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.

Official advisory · medium-confidence parse· fetched 16 days ago·verify at source

Mitigation

The source record does not include mitigation steps. That does not mean no fix exists. Read the vendor advisory below for the authoritative guidance.

Official advisory · medium-confidence parse· fetched 16 days ago·verify at source

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