Bug 2348308 (CVE-2022-49189)

Summary: CVE-2022-49189 kernel: clk: qcom: clk-rcg2: Update logic to calculate D value for RCG
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:24:54 UTC 
In the Linux kernel, the following vulnerability has been resolved:

clk: qcom: clk-rcg2: Update logic to calculate D value for RCG

The display pixel clock has a requirement on certain newer platforms to
support M/N as (2/3) and the final D value calculated results in
underflow errors.
As the current implementation does not check for D value is within
the accepted range for a given M & N value. Update the logic to
calculate the final D value based on the range.
Comment 1 Avinash Hanwate 2025-02-26 13:22:50 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022615-CVE-2022-49189-b7be@gregkh/T
Comment 4 Avinash Hanwate 2025-02-26 17:38:52 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022615-CVE-2022-49189-b7be@gregkh/T