GPU memory corruption via overflowed VCE image size
Published Aug 10, 2026 · Updated Aug 10, 2026
Out-of-bounds access in Linux 4.2 through 7.2-rc1 allows local users to corrupt GPU-accessible memory via crafted VCE commands. The amdgpu VCE parser calculates image buffer size with 32-bit multiplication, so oversized dimensions wrap the size to zero and bypass validation. Access to a local AMD GPU render node is required; the resulting firmware operation reads or writes beyond the intended buffer and can crash the GPU or system.
Summary
What happened
Out-of-bounds access in Linux 4.2 through 7.2-rc1 allows local users to corrupt GPU-accessible memory via crafted VCE commands. The amdgpu VCE parser calculates image buffer size with 32-bit multiplication, so oversized dimensions wrap the size to zero and bypass validation. Access to a local AMD GPU render node is required; the resulting firmware operation reads or writes beyond the intended buffer and can crash the GPU or system.
The record
- CVE
- CVE-2026-68108
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 10, 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=0 <6.12.101
- Affected versionversion=0 <6.18.42
- Affected versionversion=0 <6.6.148
- Affected versionversion=0 <7.1.6
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <00c311a13d225266800c712f2b7db2711c6897de
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <186bfdc4e26d019b2e7570cb121964a1d89b2e5b
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7eebef042c12dfe0568593ee6a8926d16505925e
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a07430abd556de3707adfcadcc60db3fa64e4b2b
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a6d7065b91a14790980ce6f4960db0ca8c3c9940
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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