CVE-2026-53329 (GCVE-0-2026-53329)
Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-08-05 12:35
VLAI
EPSS
VEX
Title
drm/amd/display: Use krealloc_array() in dal_vector_reserve()
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Use krealloc_array() in dal_vector_reserve()
[Why & How]
dal_vector_reserve() computes the allocation size as
"capacity * vector->struct_size" using uint32_t arithmetic, which can
silently wrap to a small value on overflow. This would cause krealloc to
return a smaller buffer than expected, leading to heap overflows on
subsequent vector appends.
Replace krealloc() with krealloc_array() which performs an internal
overflow check and returns NULL on wrap, preventing the issue.
(cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)
Severity
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
2004f45ef83f07f43f5da6ede780b08068c7583d , < 9540b0a4d13e4ede64ae1197d66a176d2149daa9
(git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < 31180638a33acad12c863132704a76536fb66211 (git) Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < b15825deac1acff72638bbc8f05b89ceef8dfb13 (git) Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < 201151e120f0062bcda21cad5d007b82725ad23b (git) Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < a914aa802669e073f014dae2e5708633b5cecd34 (git) Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < e09689286385a66311ac6922af95339d7a3cef8d (git) Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < de988c7a31f0774f07894cfe4802996f318e2870 (git) Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < da48bc4461b8a5ebfb9264c9b191a701d8e99009 (git) |
guessed | |
| Linux | Linux |
Affected:
4.15
Unaffected: 0 , < 4.15 (semver) Unaffected: 5.10.260 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed |
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{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-674"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-08-20T07:59:56+00:00",
"cve": "CVE-2026-53329",
"id": "CVE-2026-53329",
"initial_release_date": "2026-07-01T00:00:00+00:00",
"product_status:fixed": "762",
"product_status:known_affected": "22",
"product_status:known_not_affected": "28",
"product_status:under_investigation": "14",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53329.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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