Bug 2405755 (CVE-2023-53724)

Summary: CVE-2023-53724 kernel: mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()
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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Description OSIDB Bzimport 2025-10-22 14:04:44 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()

`req` is allocated in pcf50633_adc_async_read(), but
adc_enqueue_request() could fail to insert the `req` into queue.
We need to check the return value and free it in the case of failure.
Comment 1 Jon Moroney 2025-10-22 16:57:19 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025102215-CVE-2023-53724-4549@gregkh/T