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CVE-2022-50038: drm/meson: Fix refcount bugs in meson_vpu_has_available_connectors()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: drm/meson: Fix refcount bugs in meson_vpu_has_available_connectors() In this function, there are two refcount leak bugs: (1) when breaking out of for_each_endpoint_of_node(), we need call the of_node_put() for the 'ep'; (2) we should call of_node_put() for the reference returned by of_graph_get_remote_port() when it is not used anymore.

Affected products

• Linux kernel: from 4.10 before 4.14.291; from 4.15 before 4.19.256; from 4.20 before 5.4.211; from 5.5 before 5.10.138; from 5.11 before 5.15.63; from 5.16 before 5.19.4 — fixed in 4.14.291, 4.19.256, 5.10.138, 5.15.63, 5.19.4, 5.4.211

How to fix

Upgrade to a fixed version: Linux kernel 4.14.291, 4.19.256, 5.10.138, 5.15.63. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3aa710e96747c8b4e52ba12ffe09edcb2755897c
• https://git.kernel.org/stable/c/6a758f0ba11699837af9e1a0f7cbac6ef765a23e
• https://git.kernel.org/stable/c/8dec38e19f6928235d4009ce55f7add8af34e5c7
• https://git.kernel.org/stable/c/91b3c8dbe898df158fd2a84675f3a284ff6666f7
• https://git.kernel.org/stable/c/d58ef256781398ad115aef44de0a02ad27ea6c3a
• https://git.kernel.org/stable/c/fc1fc2abfcb9235d0ece9a4d858426fb617cfa66
• https://git.kernel.org/stable/c/fe71d84c1a6c0d54657431e8eeaefc9d24895304

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