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CVE-2026-46006 (GCVE-0-2026-46006)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:56 – Updated: 2026-08-05 12:29
VLAI
Title
drm/nouveau: fix u32 overflow in pushbuf reloc bounds check
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix u32 overflow in pushbuf reloc bounds check nouveau_gem_pushbuf_reloc_apply() validates each relocation with if (r->reloc_bo_offset + 4 > nvbo->bo.base.size) but reloc_bo_offset is __u32 (uapi/drm/nouveau_drm.h) and the integer literal 4 promotes to unsigned int, so the addition is performed in 32 bits and wraps before the comparison against the size_t bo size. Cast to u64 so the addition happens in 64-bit arithmetic. [ Add Fixes: tag. - Danilo ]
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < 3429275684f4bad42876955301f3c5c814aae909 (git)
Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < 573a1104bd36e49c067a9dc62e7c476d5ee7e92a (git)
Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < 45a45184b9c0b0b26ead06e370cda2073616a7cc (git)
Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < fa297e919d1680c38ab268ff952b1698dac987f6 (git)
Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < d749a9a0ee4014681487e7ae549901aa8c176637 (git)
Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < 332884f5eb79dd60a7162b079d09d39208567a31 (git)
Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < e441d5c23ec644c8d27593db3b8928e8933512a9 (git)
Affected: a1606a9596e54da90ad6209071b357a4c1b0fa82 , < 2fc87d37be1b730a149b035f9375fdb8cc5333a5 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.34
Unaffected: 0 , < 2.6.34 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:40:29+00:00",
      "cve": "CVE-2026-46006",
      "id": "CVE-2026-46006",
      "initial_release_date": "2026-05-27T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/nouveau: fix u32 overflow in pushbuf reloc bounds check",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46006.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T01:13:26Z",
      "cve": "CVE-2026-46006",
      "id": "CVE-2026-46006",
      "initial_release_date": "2026-05-28T03:54:31Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "703",
      "product_status:known_not_affected": "17",
      "product_status:recommended": "254",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46006",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46006.json",
      "version": "13"
    }
  }
}



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Tags
Taxonomy of the tags.





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.