Local privilege escalation via unchecked user-fence address
Published Nov 25, 2024 · Updated May 11, 2026
Out-of-bounds write in the Linux kernel 6.8 through 6.11.8 allows local users to gain elevated privileges via a crafted Xe user-fence address. In user_fence_create, access_ok() accepted an address after checking only range overflow, and a worker later passed that address to copy_to_user(). Exploitation requires low-privileged local access to the Intel Xe user-fence path and can compromise kernel confidentiality, integrity, and availability.
Summary
What happened
Out-of-bounds write in the Linux kernel 6.8 through 6.11.8 allows local users to gain elevated privileges via a crafted Xe user-fence address. In user_fence_create, access_ok() accepted an address after checking only range overflow, and a worker later passed that address to copy_to_user(). Exploitation requires low-privileged local access to the Intel Xe user-fence path and can compromise kernel confidentiality, integrity, and availability.
The record
- CVE
- CVE-2024-53098
- Published
- Nov 25, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 25, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record 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=dd08ebf6c3525a7ea2186e636df064ea47281987 <5d623ffbae96b23f1fc43a3d5a267aabdb07583d
- Affected versionversion=dd08ebf6c3525a7ea2186e636df064ea47281987 <9c1813b3253480b30604c680026c7dc721ce86d1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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