PT-2026-51962 · Linux · Linux

Publicado 2026-06-24 · Atualizado 2026-06-24 · CVE-2026-53068

NVD

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.

Identificadores relacionados

CVE-2026-53068

Produtos afetados

Linux

Referências · 9

• https://git.kernel.org/stable/c/872d923b852705054bc099af663da862fdc1097d · Nota
• https://git.kernel.org/stable/c/e27b58095d7d3ac72f230e318838dee956258460 · Nota
• https://git.kernel.org/stable/c/779ec12c85c9e4547519e3903a371a3b26a289de · Nota
• https://git.kernel.org/stable/c/fe1f80f8f6e8611ac6349b9d464e8750443390cf · Nota
• https://git.kernel.org/stable/c/d8a541906860aa3519b1874780d933c766918a7c · Nota
• https://git.kernel.org/stable/c/02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-53068 · Nota de Segurança
• https://git.kernel.org/stable/c/8165e8b28fdf392c2c7412518d602b4f193812a8 · Nota
• https://git.kernel.org/stable/c/a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7 · Nota