CVE-2023-54047
In the Linux kernel, the following vulnerability has been resolved: drm/rockchip: dw_hdmi: cleanup drm encoder during unbind This fixes a use-after-free crash during rmmod. The DRM encoder is embedded inside the larger rockchip_hdmi, which is allocated with the component. The component memory gets freed before the main drm device is destroyed. Fix it by running encoder cleanup before tearing down its container. [moved encoder cleanup above clk_disable, similar to bind-error-path]
Affected versions
Linux kernel versions
4.9
and later are affected. Fixed in
6.1.30,
6.3.4,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-54047 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/110d4202522373d629d14597af9bac97eb58bd67
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PatchKernel patch commithttps://git.kernel.org/stable/c/218fe9b624545f4bcfb16cdb35ac3d60c8b0d8c7
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PatchKernel patch commithttps://git.kernel.org/stable/c/b5af48eedcb53491c02ded55d5991e03d6da6dbf
Frequently asked questions
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What is CVE-2023-54047?
CVE-2023-54047 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.9 onward and has been patched in 6.1.30, 6.3.4 and 6.4. CVE-2023-54047 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2023-54047?
Yes — CVE-2023-54047 has been patched. Fixed versions include 6.1.30, 6.3.4 and 6.4. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54047 actively exploited?
No — CVE-2023-54047 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.