CVE-2026-23468 (GCVE-0-2026-23468)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-06-01 16:11
VLAI
Title
drm/amdgpu: Limit BO list entry count to prevent resource exhaustion
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion Userspace can pass an arbitrary number of BO list entries via the bo_number field. Although the previous multiplication overflow check prevents out-of-bounds allocation, a large number of entries could still cause excessive memory allocation (up to potentially gigabytes) and unnecessarily long list processing times. Introduce a hard limit of 128k entries per BO list, which is more than sufficient for any realistic use case (e.g., a single list containing all buffers in a large scene). This prevents memory exhaustion attacks and ensures predictable performance. Return -EINVAL if the requested entry count exceeds the limit (cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < c833d6c7199c5b5fca9ec95593acd539ec9c171c (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < e620378aab78d415bd8a15a2f91c145906520288 (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 2723e6851309531ce61aed74e93a0cd268cc862a (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 5ce4a38e6c2488949e373d5066303f9c128db614 (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9 (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 6270b1a5dab94665d7adce3dc78bc9066ed28bdd (git)
Create a notification for this product.
Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "cve": "CVE-2026-23468",
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      "cve": "CVE-2026-23468",
      "id": "CVE-2026-23468",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23468",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23468.json",
      "version": "17"
    }
  }
}



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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

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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.
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  • 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.