CVE-2026-68108: Linux kernel · drm/amdgpu/vce: fix integer overflow in image size
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 8.8 High · fixed in a07430abd556de3707adfcadcc60db3fa64e4b2b : patch Linux kernel soon.
Data as of 26 Oct 2026, 16:39 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Total control over the software or total information disclosure
CISA SSVC assessment, 2026-10-16.
- Patch
- Available – fixed in a07430abd556de3707adfcadcc60db3fa64e4b2b, a6d7065b91a14790980ce6f4960db0ca8c3c9940, 893db20383800cfe92e638705984eebb13bc81a5 +3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce: fix integer overflow in image size Fix a security vulnerability where malicious VCE command streams with oversized dimensions (e.g. 65536×65536) cause 32-bit integer overflow, wrapping the calculated buffer size to 0. This bypasses validation and allows GPU firmware to perform out-of-bound memory access. The fix uses 64-bit arithmetic to detect overflow and rejects invalid dimensions before they reach the hardware. V2: remove redundant check V3: modify max height value V4: remove size64 (cherry picked from commit cbe408dba581755ad1279a487ec786d8927d778d)
References
- git.kernel.org/stable/c/893db20383800cfe92e638705984eebb13bc81a5 (opens in a new tab)
- git.kernel.org/stable/c/a07430abd556de3707adfcadcc60db3fa64e4b2b (opens in a new tab)
- git.kernel.org/stable/c/a6d7065b91a14790980ce6f4960db0ca8c3c9940 (opens in a new tab)
- git.kernel.org/stable/c/7eebef042c12dfe0568593ee6a8926d16505925e (opens in a new tab)
- git.kernel.org/stable/c/00c311a13d225266800c712f2b7db2711c6897de (opens in a new tab)
- git.kernel.org/stable/c/186bfdc4e26d019b2e7570cb121964a1d89b2e5b (opens in a new tab)