Bug 2363777 (CVE-2023-53043)

Summary: CVE-2023-53043 kernel: arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-02 16:05:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent

If the controller is not marked as cache coherent, then kernel will
try to ensure coherency during dma-ops and that may cause data corruption.
So, mark the PCIe node as dma-coherent as the devices on PCIe bus are
cache coherent.
Comment 1 Avinash Hanwate 2025-05-05 06:49:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050203-CVE-2023-53043-61cf@gregkh/T