Local privilege escalation via dangling IVPU buffer object
Published Dec 24, 2025 · Updated Dec 24, 2025
Use-after-free in the Linux kernel IVPU driver allows local users with accelerator-device access to elevate privileges through an ioctl. ivpu_gem_create_object() links a buffer object to vdev->bo_list before drm_gem_shmem_create() succeeds, leaving a freed object queued when allocation fails. An ordinary local user must have access to /dev/accel/accel*; closing the descriptor triggers teardown, where the stale object can cause a page fault, kernel-memory access, or control-flow hijacking.
Summary
What happened
Use-after-free in the Linux kernel IVPU driver allows local users with accelerator-device access to elevate privileges through an ioctl. ivpu_gem_create_object() links a buffer object to vdev->bo_list before drm_gem_shmem_create() succeeds, leaving a freed object queued when allocation fails. An ordinary local user must have access to /dev/accel/accel*; closing the descriptor triggers teardown, where the stale object can cause a page fault, kernel-memory access, or control-flow hijacking.
The record
- CVE
- CVE-2025-68730
- Published
- Dec 24, 2025
- Updated
- Dec 24, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 24, 2025CVE publishedPublication date reported by the CVE source.
- Dec 24, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.8
- Affected versionversion=8d88e4cdce4f5c56de55174a4d32ea9c06f7fa66 <8172838a284c27190fa6782c2740a97020434750
- Affected versionversion=8d88e4cdce4f5c56de55174a4d32ea9c06f7fa66 <8b694b405a84696f1d964f6da7cf9721e68c4714
- Affected versionversion=8d88e4cdce4f5c56de55174a4d32ea9c06f7fa66 <c9ef5ccd8bd9bcf598b6d3f77e7eb4dde7149aec
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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