Bug 2348604 (CVE-2024-52557)

Summary: CVE-2024-52557 kernel: drm: zynqmp_dp: Fix integer overflow in zynqmp_dp_rate_get()
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 2025-02-27 03:04:49 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm: zynqmp_dp: Fix integer overflow in zynqmp_dp_rate_get()

This patch fixes a potential integer overflow in the zynqmp_dp_rate_get()

The issue comes up when the expression
drm_dp_bw_code_to_link_rate(dp->test.bw_code) * 10000 is evaluated using 32-bit
Now the constant is a compatible 64-bit type.

Resolves coverity issues: CID 1636340 and CID 1635811
Comment 1 Michal Findra 2025-02-27 08:43:48 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022602-CVE-2024-52557-506d@gregkh/T