CVE-2026-53068
drm/komeda: fix integer overflow in AFBC framebuffer size check
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.
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 21, 2026, 5:39 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Apply the patch for the kernel.
- Update the Linux kernel.
- Ensure AFBC size validation is robust.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53068.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53068 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53068
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53068 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53068 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Added CWE CWE-190 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.141 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.91 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.175 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.209 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.10.258 Added Reference Type kernel.org: https://git.kernel.org/stable/c/02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/779ec12c85c9e4547519e3903a371a3b26a289de Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8165e8b28fdf392c2c7412518d602b4f193812a8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/872d923b852705054bc099af663da862fdc1097d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d8a541906860aa3519b1874780d933c766918a7c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e27b58095d7d3ac72f230e318838dee956258460 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fe1f80f8f6e8611ac6349b9d464e8750443390cf Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': 'a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7', 'versionType': 'git'}, {'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': 'e27b58095d7d3ac72f230e318838dee956258460', 'versionType': 'git'}, {'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': '02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583', 'versionType': 'git'}, {'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': 'd8a541906860aa3519b1874780d933c766918a7c', 'versionType': 'git'}, {'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': '8165e8b28fdf392c2c7412518d602b4f193812a8', 'versionType': 'git'}, {'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': 'fe1f80f8f6e8611ac6349b9d464e8750443390cf', 'versionType': 'git'}, {'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': '872d923b852705054bc099af663da862fdc1097d', 'versionType': 'git'}, {'status': 'affected', 'version': '65ad2392dd6d1691db93e82b08d3311298b9d64a', 'lessThan': '779ec12c85c9e4547519e3903a371a3b26a289de', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.3'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.258', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.209', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.175', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.141', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.91', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583 Added Reference https://git.kernel.org/stable/c/779ec12c85c9e4547519e3903a371a3b26a289de Added Reference https://git.kernel.org/stable/c/8165e8b28fdf392c2c7412518d602b4f193812a8 Added Reference https://git.kernel.org/stable/c/872d923b852705054bc099af663da862fdc1097d Added Reference https://git.kernel.org/stable/c/a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7 Added Reference https://git.kernel.org/stable/c/d8a541906860aa3519b1874780d933c766918a7c Added Reference https://git.kernel.org/stable/c/e27b58095d7d3ac72f230e318838dee956258460 Added Reference https://git.kernel.org/stable/c/fe1f80f8f6e8611ac6349b9d464e8750443390cf