Bug 2396392 (CVE-2022-50392)

Summary: CVE-2022-50392 kernel: Linux kernel: Denial of Service in ASoC Mediatek due to refcount leak
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. A local user could exploit a refcount leak in the Audio System on Chip (ASoC) Mediatek component, specifically within the `mt8183_mt6358_ts3a227_max98357_dev_probe()` function. This vulnerability could lead to a Denial of Service (DoS) due to resource exhaustion.
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Description OSIDB Bzimport 2025-09-18 14:02:23 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ASoC: mediatek: mt8183: fix refcount leak in mt8183_mt6358_ts3a227_max98357_dev_probe()

The node returned by of_parse_phandle() with refcount incremented,
of_node_put() needs be called when finish using it. So add it in the
error path in mt8183_mt6358_ts3a227_max98357_dev_probe().
Comment 1 Keith Grant 2025-09-18 15:37:12 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091853-CVE-2022-50392-967e@gregkh/T