CVE-2023-53806
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: populate subvp cmd info only for the top pipe [Why] System restart observed while changing the display resolution to 8k with extended mode. Sytem restart was caused by a page fault. [How] When the driver populates subvp info it did it for both the pipes using vblank which caused an outof bounds array access causing the page fault. added checks to allow the top pipe only to fix this issue.
Affected versions
Linux kernel versions
4.15
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-2023-53806 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/375d192eb1f1d9229a6d994da7ba31f3582b106b
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PatchKernel patch commithttps://git.kernel.org/stable/c/92e6c79acad4b96efeff261d27bdbd8089a7dd24
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PatchKernel patch commithttps://git.kernel.org/stable/c/9bb10b7aaec3b6278f9cc410c17dcaa129bbbbf0
Frequently asked questions
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What is CVE-2023-53806?
CVE-2023-53806 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.15 onward and has been patched in 6.1.30, 6.3.4 and 6.4. CVE-2023-53806 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-2023-53806?
Yes — CVE-2023-53806 has been patched. Fixed versions include 6.1.30, 6.3.4 and 6.4. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-53806 actively exploited?
No — CVE-2023-53806 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.