Bug 2492452 (CVE-2026-53045)

Summary: CVE-2026-53045 kernel: memory: tegra124-emc: Fix dll_change check
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's memory management for the tegra124-emc component. The code responsible for checking whether a specified memory timing enables the Delay-Locked Loop (DLL) in the EMRS register was reversed. This logic error could lead to incorrect memory timing configurations.
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Description OSIDB Bzimport 2026-06-24 18:12:50 UTC 
In the Linux kernel, the following vulnerability has been resolved:

memory: tegra124-emc: Fix dll_change check

The code checking whether the specified memory timing enables DLL
in the EMRS register was reversed. DLL is enabled if bit A0 is low.
Fix the check.
Comment 1 Mauro Matteo Cascella 2026-06-25 08:46:06 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062458-CVE-2026-53045-e43c@gregkh/T