Bug 2424979 (CVE-2022-50698)

Summary: CVE-2022-50698 kernel: ASoC: da7219: Fix an error handling path in da7219_register_dai_clks()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in the Linux kernel's ASoC da7219 audio codec driver. An error handling path in da7219_register_dai_clks() incorrectly attempts to unregister a clock that was never successfully registered. This could lead to incorrect resource cleanup during driver probe failure, potentially causing system instability.
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Description OSIDB Bzimport 2025-12-24 12:05:32 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ASoC: da7219: Fix an error handling path in da7219_register_dai_clks()

If clk_hw_register() fails, the corresponding clk should not be
unregistered.

To handle errors from loops, clean up partial iterations before doing the
goto.  So add a clk_hw_unregister().
Then use a while (--i >= 0) loop in the unwind section.
Comment 1 Alexander B 2025-12-25 11:22:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122417-CVE-2022-50698-0d67@gregkh/T