Bug 2405725 (CVE-2023-53704)

Summary: CVE-2023-53704 kernel: clk: imx: clk-imx8mp: improve error handling in imx8mp_clocks_probe()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-10-22 14:02:27 UTC 
In the Linux kernel, the following vulnerability has been resolved:

clk: imx: clk-imx8mp: improve error handling in imx8mp_clocks_probe()

Replace of_iomap() and kzalloc() with devm_of_iomap() and devm_kzalloc()
which can automatically release the related memory when the device
or driver is removed or unloaded to avoid potential memory leak.

In this case, iounmap(anatop_base) in line 427,433 are removed
as manual release is not required.

Besides, referring to clk-imx8mq.c, check the return code of
of_clk_add_hw_provider, if it returns negtive, print error info
and unregister hws, which makes the program more robust.
Comment 1 Jon Moroney 2025-10-22 18:01:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025102212-CVE-2023-53704-9f42@gregkh/T