CVE-2026-53068
In the Linux kernel, the following vulnerability has been resolved: drm/komeda: fix integer overflow in AFBC framebuffer size check The AFBC framebuffer size validation calculates the minimum required buffer size by adding the AFBC payload size to the framebuffer offset. This addition is performed without checking for integer overflow. If the addition oveflows, the size check may incorrectly succed and allow userspace to provide an undersized drm_gem_object, potentially leading to out-of-bounds memory access. Add usage of check_add_overflow() to safely compute the minimum required size and reject the framebuffer if an overflow is detected. This makes the AFBC size validation more robust against malformed. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Affected versions
Linux kernel versions
5.3
and later are affected. Fixed in
5.10.258,
5.15.209,
6.1.175,
6.6.141,
6.12.91,
6.18.33,
7.0.10,
7.1
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-53068?
CVE-2026-53068 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.3 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-53068 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-2026-53068?
Yes — CVE-2026-53068 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-53068 actively exploited?
No — CVE-2026-53068 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.