CVE-2026-98785 (GCVE-0-2026-98785)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:48 – Updated: 2026-10-30 12:39
VLAI
Title
drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend dc_state_create_copy() can return NULL on allocation failure. dm_suspend() only conditionally skips dm_gpureset_toggle_interrupts() and continues execution, returning success. dm_resume() then dereferences the NULL cached_dc_state in link_enc_cfg_copy() and the following dc_state->stream_count loop, crashing during GPU reset recovery. Return -ENOMEM immediately if the copy fails, so the caller aborts suspend instead of leaving a NULL cached state for resume. (cherry picked from commit 84b6d7932fdd2857795a257f9f258562a3cddcab)
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6971 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d0b8b23b9c2ebec693a36fea518d8f13493ad655 , < ed65678bb23a5f5040932960851ac39bdeafb765 (git)
Affected: 83c7f509ef087041604e9572938f82e18b724c9d , < 0b24f9d4e6e8ab64da8f2ae85bd1790d0f6a596f (git)
Affected: 4cc2a94d96caeb3c975acdae7351c2f997c32175 , < 29302964ef583f3a57efc3c990bc0a71337bd3a4 (git)
Affected: 8092aa3ab8f7b737a34b71f91492c676a843043a , < 686baa1f4ec43b33e39e3d4b4a4539a91d17e883 (git)
Affected: 8092aa3ab8f7b737a34b71f91492c676a843043a , < 197946faa1b7968046ba475ae2f266847c6f51ed (git)
Affected: 8092aa3ab8f7b737a34b71f91492c676a843043a , < 7283b78ca07ce491984a63f6288f3f8de5bdcb22 (git)
Affected: 8092aa3ab8f7b737a34b71f91492c676a843043a , < 015e72cde567d2450e282c2790773463156b2d0a (git)
Affected: ea000e4b4ee5363997715531cb3d024b4e5d561c (git)
Affected: 1686675405d07f35eae7ff3d13a530034b899df2 (git)
Affected: 5.15.165 , < 5.15.224 (semver)
Affected: 6.1.105 , < 6.1.191 (semver)
Affected: 6.6.46 , < 6.6.160 (semver)
Affected: 5.10.258 , < 5.11 (semver)
Affected: 6.10.5 , < 6.11 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 5.15.224 , ≤ 5.15.* (semver)
Unaffected: 6.1.191 , ≤ 6.1.* (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.113 , ≤ 6.12.* (semver)
Unaffected: 6.18.56 , ≤ 6.18.* (semver)
Unaffected: 7.2.10 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: check dc_state_create_copy() for NULL in dm_suspend\n\ndc_state_create_copy() can return NULL on allocation failure.\ndm_suspend() only conditionally skips dm_gpureset_toggle_interrupts()\nand continues execution, returning success.  dm_resume() then\ndereferences the NULL cached_dc_state in link_enc_cfg_copy() and the\nfollowing dc_state-\u003estream_count loop, crashing during GPU reset\nrecovery.\n\nReturn -ENOMEM immediately if the copy fails, so the caller aborts\nsuspend instead of leaving a NULL cached state for resume.\n\n(cherry picked from commit 84b6d7932fdd2857795a257f9f258562a3cddcab)"
        }
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      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/ed65678bb23a5f5040932960851ac39bdeafb765"
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          "url": "https://git.kernel.org/stable/c/29302964ef583f3a57efc3c990bc0a71337bd3a4"
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    "cveId": "CVE-2026-98785",
    "datePublished": "2026-10-18T15:48:22.111Z",
    "dateReserved": "2026-09-25T10:25:14.370Z",
    "dateUpdated": "2026-10-30T12:39:49.489Z",
    "state": "PUBLISHED"
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      "title": "drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend",
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: check dc_state_create_copy() for NULL in dm_suspend\n\ndc_state_create_copy() can return NULL on allocation failure.\ndm_suspend() only conditionally skips dm_gpureset_toggle_interrupts()\nand continues execution, returning success.  dm_resume() then\ndereferences the NULL cached_dc_state in link_enc_cfg_copy() and the\nfollowing dc_state-\u003estream_count loop, crashing during GPU reset\nrecovery.\n\nReturn -ENOMEM immediately if the copy fails, so the caller aborts\nsuspend instead of leaving a NULL cached state for resume.\n\n(cherry picked from commit 84b6d7932fdd2857795a257f9f258562a3cddcab)"
          }
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        "id": "CVE-2026-98785",
        "lastModified": "2026-10-30T13:21:27.880",
        "metrics": {},
        "published": "2026-10-18T16:17:32.467",
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            "url": "https://git.kernel.org/stable/c/ed65678bb23a5f5040932960851ac39bdeafb765"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-23T11:16:48+00:00",
      "cve": "CVE-2026-98785",
      "id": "CVE-2026-98785",
      "initial_release_date": "2026-10-18T00:00:00+00:00",
      "product_status:known_affected": "199",
      "product_status:known_not_affected": "79",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98785.json",
      "version": "3"
    }
  }
}



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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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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    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.