Description
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 products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 65ad2392dd6d1691db93e82b08d3311298b9d64a to <a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7; 65ad2392dd6d1691db93e82b08d3311298b9d64a to <e27b58095d7d3ac72f230e318838dee956258460; 65ad2392dd6d1691db93e82b08d3311298b9d64a to <02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583; 65ad2392dd6d1691db93e82b08d3311298b9d64a to <d8a541906860aa3519b1874780d933c766918a7c; 65ad2392dd6d1691db93e82b08d3311298b9d64a to <8165e8b28fdf392c2c7412518d602b4f193812a8; 65ad2392dd6d1691db93e82b08d3311298b9d64a to <fe1f80f8f6e8611ac6349b9d464e8750443390cf; 65ad2392dd6d1691db93e82b08d3311298b9d64a to <872d923b852705054bc099af663da862fdc1097d; 65ad2392dd6d1691db93e82b08d3311298b9d64a to <779ec12c85c9e4547519e3903a371a3b26a289de |
| Linux | Linux | 5.3; 0 to <5.3; 5.10.258 to <=5.10.*; 5.15.209 to <=5.15.*; 6.1.175 to <=6.1.*; 6.6.141 to <=6.6.*; 6.12.91 to <=6.12.*; 6.18.33 to <=6.18.*; 7.0.10 to <=7.0.*; 7.1 to <=* |
References
- https://git.kernel.org/stable/c/a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7
- https://git.kernel.org/stable/c/e27b58095d7d3ac72f230e318838dee956258460
- https://git.kernel.org/stable/c/02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583
- https://git.kernel.org/stable/c/d8a541906860aa3519b1874780d933c766918a7c
- https://git.kernel.org/stable/c/8165e8b28fdf392c2c7412518d602b4f193812a8
- https://git.kernel.org/stable/c/fe1f80f8f6e8611ac6349b9d464e8750443390cf
- https://git.kernel.org/stable/c/872d923b852705054bc099af663da862fdc1097d
- https://git.kernel.org/stable/c/779ec12c85c9e4547519e3903a371a3b26a289de
Generated from the official CVE List on 25 Jun 2026 10:14 UTC.