CVE-2026-68108 (GCVE-0-2026-68108)

Vulnerability from cvelistv5 – Published: 2026-08-10 11:58 – Updated: 2026-08-19 16:29
VLAI
Title
drm/amdgpu/vce: fix integer overflow in image size
Summary
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)
Severity
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c , < 893db20383800cfe92e638705984eebb13bc81a5 (git)
Affected: f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c , < a07430abd556de3707adfcadcc60db3fa64e4b2b (git)
Affected: f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c , < a6d7065b91a14790980ce6f4960db0ca8c3c9940 (git)
Affected: f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c , < 7eebef042c12dfe0568593ee6a8926d16505925e (git)
Affected: f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c , < 00c311a13d225266800c712f2b7db2711c6897de (git)
Affected: f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c , < 186bfdc4e26d019b2e7570cb121964a1d89b2e5b (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 6.1.183 , ≤ 6.1.* (semver)
Unaffected: 6.6.148 , ≤ 6.6.* (semver)
Unaffected: 6.12.101 , ≤ 6.12.* (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 7.1.6 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "dateReserved": "2026-07-30T09:28:09.368Z",
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      "cve": "CVE-2026-68108",
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      "product_status:known_affected": "275",
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      "status": "final",
      "title": "kernel: drm/amdgpu/vce: fix integer overflow in image size",
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      "current_release_date": "2026-09-18T00:35:59Z",
      "cve": "CVE-2026-68108",
      "id": "CVE-2026-68108",
      "initial_release_date": "2026-08-13T16:24:31Z",
      "product_status:known_affected": "681",
      "product_status:known_not_affected": "67",
      "product_status:recommended": "107",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-68108",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68108.json",
      "version": "8"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.