CVE-2026-68106: Linux kernel · drm/amdgpu: fix division by zero with invalid uvd dimensions
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 7.8 High · fixed in ffb33d466a68cea3e8a3dbed04d79037a3cbabd1 : patch Linux kernel soon.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% 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 ffb33d466a68cea3e8a3dbed04d79037a3cbabd1, be725ab23aa45c11a5afef3e2a9f6d8c084ae5dc, a00946b5ab7c25da5685ca9c58f50ff6f43c0fdf +5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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: fix division by zero with invalid uvd dimensions When width or height is less than 16, width_in_mb or height_in_mb becomes 0, leading to fs_in_mb being 0. This causes a division by zero when calculating num_dpb_buffer in H264 and H264 Perf decode paths. Add validation to reject frames with width < 16 or height < 16 before performing any calculations that depend on these values. V2: Format change - move up all vaiable definitions. V3: Use warn_once to avoid spam. (cherry picked from commit 3e41d26c70b0a459d041cc19482a226c4b7423cb)
References
- git.kernel.org/stable/c/004d0453cfef16f056cb7b8bc04f69f19cf9df32 (opens in a new tab)
- git.kernel.org/stable/c/00ee64910ecf748cc15b23bbcbea472c203ec1e8 (opens in a new tab)
- git.kernel.org/stable/c/81c9b4921f62d1642b9d775524ae9240e521a5ed (opens in a new tab)
- git.kernel.org/stable/c/52f9a588296432accf2982f7d258192a37562f4f (opens in a new tab)
- git.kernel.org/stable/c/a00946b5ab7c25da5685ca9c58f50ff6f43c0fdf (opens in a new tab)
- git.kernel.org/stable/c/ffb33d466a68cea3e8a3dbed04d79037a3cbabd1 (opens in a new tab)
- git.kernel.org/stable/c/be725ab23aa45c11a5afef3e2a9f6d8c084ae5dc (opens in a new tab)
- git.kernel.org/stable/c/0c01c811be47e6b146552dd59bfedbea8f09b8f4 (opens in a new tab)