CVE-2026-52987 (GCVE-0-2026-52987)
Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-09-10 12:05
VLAI
EPSS
VEX
Title
drm/amdgpu: avoid double drm_exec_fini() in userq validate
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: avoid double drm_exec_fini() in userq validate
When new_addition is true, amdgpu_userq_vm_validate() calls
drm_exec_fini(&exec) before iterating over the collected HMM ranges and
calling amdgpu_ttm_tt_get_user_pages().
If amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to
unlock_all and calls drm_exec_fini(&exec) a second time on the same
exec object. drm_exec_fini() is not idempotent: it frees exec->objects
and may also drop exec->contended and finalize the ww acquire context.
Route that error path directly to the range cleanup once exec has
already been finalized.
Issue found using a prototype static analysis tool
and confirmed by code review.
(cherry picked from commit 2802952e4a07306da6ebe813ff1acacc5691851a)
Severity
CWE
- CWE-1341 - Multiple Releases of Same Resource or Handle
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/c7c3ae7c01e5a0742… | |
| https://git.kernel.org/stable/c/508babf310365f110… | |
| https://access.redhat.com/security/cve/CVE-2026-52987 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2492365 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
7 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
42f148788469792df207751e2339ef2bb8a1e33e , < c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38
(git)
Affected: 42f148788469792df207751e2339ef2bb8a1e33e , < 508babf310365f1107a2e8831c267c292a286818 (git) |
guessed | |
| Linux | Linux |
Affected:
6.19
Unaffected: 0 , < 6.19 (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed | |
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
||
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
||
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
||
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
||
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
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"cve": "CVE-2026-52987",
"id": "CVE-2026-52987",
"initial_release_date": "2026-06-24T00:00:00+00:00",
"product_status:known_affected": "2",
"product_status:known_not_affected": "258",
"product_status:under_investigation": "14",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/amdgpu: avoid double drm_exec_fini() in userq validate",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52987.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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