Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Do not kfree() devres managed rdev Since the allocation of the… (CVE-2025-68170)
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Do not kfree() devres managed rdev Since the allocation of the drivers main structure was changed to devm_drm_dev_alloc() rdev is managed by devres and we shouldn't be calling kfree() on it. This fixes things exploding if the driver probe fails and devres cleans up the rdev after we already free'd it. (cherry picked from commit 16c0681617b8a045773d4d87b6140002fa75b03b)
AI Analysis
Technical Summary
The Linux kernel's drm/radeon driver previously called kfree() on the rdev structure, which is now managed by devres due to a change in allocation to devm_drm_dev_alloc(). This caused a double free scenario when the driver probe failed and devres attempted to clean up the rdev after it was already freed, leading to potential kernel instability. The vulnerability was fixed by removing the kfree() call on the devres managed rdev, preventing use-after-free or double free conditions.
Potential Impact
Exploitation of this vulnerability could lead to kernel crashes or memory corruption, impacting confidentiality, integrity, and availability of the system. The CVSS vector indicates local attack complexity is low, requiring low privileges and no user interaction, with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix has been implemented in the Linux kernel source to remove the improper kfree() call on the devres managed rdev structure. Users should update to the fixed kernel version containing the commit 16c0681617b8a045773d4d87b6140002fa75b03b. Patch status is not explicitly confirmed in the provided data; check the vendor or Linux kernel advisory for the exact fixed versions and update accordingly.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Do not kfree() devres managed rdev Since the allocation of the… (CVE-2025-68170)
Description
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Do not kfree() devres managed rdev Since the allocation of the drivers main structure was changed to devm_drm_dev_alloc() rdev is managed by devres and we shouldn't be calling kfree() on it. This fixes things exploding if the driver probe fails and devres cleans up the rdev after we already free'd it. (cherry picked from commit 16c0681617b8a045773d4d87b6140002fa75b03b)
CVSS v3.1
Score 7.8high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's drm/radeon driver previously called kfree() on the rdev structure, which is now managed by devres due to a change in allocation to devm_drm_dev_alloc(). This caused a double free scenario when the driver probe failed and devres attempted to clean up the rdev after it was already freed, leading to potential kernel instability. The vulnerability was fixed by removing the kfree() call on the devres managed rdev, preventing use-after-free or double free conditions.
Potential Impact
Exploitation of this vulnerability could lead to kernel crashes or memory corruption, impacting confidentiality, integrity, and availability of the system. The CVSS vector indicates local attack complexity is low, requiring low privileges and no user interaction, with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix has been implemented in the Linux kernel source to remove the improper kfree() call on the devres managed rdev structure. Users should update to the fixed kernel version containing the commit 16c0681617b8a045773d4d87b6140002fa75b03b. Patch status is not explicitly confirmed in the provided data; check the vendor or Linux kernel advisory for the exact fixed versions and update accordingly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8rp7-mg54-f432
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-68170"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a6b72d39c2644c7f8478635
Added to database: 07/30/2026, 15:50:43 UTC
Last enriched: 07/30/2026, 18:24:19 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 13
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