Bug 2373508 (CVE-2022-49946)

Summary: CVE-2022-49946 kernel: clk: bcm: rpi: Prevent out-of-bounds access
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 2025-06-18 12:06:04 UTC 
In the Linux kernel, the following vulnerability has been resolved:

clk: bcm: rpi: Prevent out-of-bounds access

The while loop in raspberrypi_discover_clocks() relies on the assumption
that the id of the last clock element is zero. Because this data comes
from the Videocore firmware and it doesn't guarantuee such a behavior
this could lead to out-of-bounds access. So fix this by providing
a sentinel element.
Comment 1 Avinash Hanwate 2025-06-19 20:33:09 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061808-CVE-2022-49946-6601@gregkh/T