CVE-2025-68749 (GCVE-0-2025-68749)
Vulnerability from cvelistv5 – Published: 2025-12-24 12:09 – Updated: 2026-08-05 12:11
VLAI
EPSS
VEX
Title
accel/ivpu: Fix race condition when unbinding BOs
Summary
In the Linux kernel, the following vulnerability has been resolved:
accel/ivpu: Fix race condition when unbinding BOs
Fix 'Memory manager not clean during takedown' warning that occurs
when ivpu_gem_bo_free() removes the BO from the BOs list before it
gets unmapped. Then file_priv_unbind() triggers a warning in
drm_mm_takedown() during context teardown.
Protect the unmapping sequence with bo_list_lock to ensure the BO is
always fully unmapped when removed from the list. This ensures the BO
is either fully unmapped at context teardown time or present on the
list and unmapped by file_priv_unbind().
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
48aea7f2a2efae6a1bd201061c71a81b3f3b7e55 , < 0328bb097bef05a796217c54b3d651cc3782827c
(git)
Affected: 48aea7f2a2efae6a1bd201061c71a81b3f3b7e55 , < fb16493ebd8f171bcf0772262619618a131f30f7 (git) Affected: 48aea7f2a2efae6a1bd201061c71a81b3f3b7e55 , < d71333ffdd3707d84cfb95acfaf8ba892adc066b (git) Affected: 48aea7f2a2efae6a1bd201061c71a81b3f3b7e55 , < 00812636df370bedf4e44a0c81b86ea96bca8628 (git) |
guessed | |
| Linux | Linux |
Affected:
6.8
Unaffected: 0 , < 6.8 (semver) Unaffected: 6.12.68 , ≤ 6.12.* (semver) Unaffected: 6.17.13 , ≤ 6.17.* (semver) Unaffected: 6.18.2 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "AV:L - The vulnerability is reached through local GEM/PRIME ioctls and concurrent descriptor closes on /dev/accel/accelN; no remote or physical path exists.\nAC:L - The attacker controls both race participants by concurrently closing an exported dma-buf and its owning accelerator context. Repetition and multiple BOs can enlarge the opportunity without conditions outside attacker control.\nPR:L - Any unprivileged process permitted to use the accelerator node, commonly through the render group, can invoke the required operations. No capability, authentication, DRM-master, or root-only check applies.\nUI:N - Exploitation requires only attacker-initiated ioctls and descriptor teardown, with no action by another user.\nS:U - The resulting corruption affects the host kernel within the same security authority; it does not inherently cross a VM or IOMMU boundary.\nC:H - The race can access a freed MMU context and freed page-table structures, producing exploitable kernel memory corruption. Successful kernel code execution would permit arbitrary kernel-memory disclosure.\nI:H - The stale unmap writes through freed page-table pointers, while stale drm_mm removal mutates list and red-black-tree state in freed or reclaimed memory. Attacker-directed heap reclamation could turn this into arbitrary writes or control-flow hijacking.\nA:H - A mapped BO can cause access to freed or unmapped page-table storage and a destroyed context, resulting in an oops or kernel panic. The attacker can repeatedly trigger the teardown race."
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"status": "final",
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"cve": "CVE-2025-68749",
"id": "CVE-2025-68749",
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"product_status:recommended": "271",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-68749",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68749.json",
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}
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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
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