CVE-2026-63881 (GCVE-0-2026-63881)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:54 – Updated: 2026-07-20 13:41
VLAI
Title
drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger get_queue_ids() computes array_size = num_queues * sizeof(uint32_t), which could overflow on 32-bit size_t build. using array_size() instead, it saturates to SIZE_MAX on overflow. (cherry picked from commit 2d57a0475f085c08b49312dfd8edcb461845f285)
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
Linux Linux Affected: a70a93fa568b4f05aba548dadb673703eccf5480 , < 4e5f808b454167cc58d7084a407a554d8ddc694d (git)
Affected: a70a93fa568b4f05aba548dadb673703eccf5480 , < de70a80992396ee306ee3a2810ad28aa1608ba9b (git)
Affected: a70a93fa568b4f05aba548dadb673703eccf5480 , < 5cf4a41aa0d74e4c83f82d2ce233b5189ed4b43c (git)
Affected: a70a93fa568b4f05aba548dadb673703eccf5480 , < 4f9eeedc3d3151f8a226fd676c314a813edda5a1 (git)
Affected: a70a93fa568b4f05aba548dadb673703eccf5480 , < 93f5534b35a05ef8a0109c1eefa800062fee810a (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.93 , ≤ 6.12.* (semver)
Unaffected: 6.18.35 , ≤ 6.18.* (semver)
Unaffected: 7.0.12 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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            "drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"
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    "dateReserved": "2026-07-19T07:54:57.018Z",
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  }
}



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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.
  • 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.