CVE-2026-53329 (GCVE-0-2026-53329)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-18 07:33
VLAI
Title
drm/amd/display: Use krealloc_array() in dal_vector_reserve()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Use krealloc_array() in dal_vector_reserve() [Why & How] dal_vector_reserve() computes the allocation size as "capacity * vector->struct_size" using uint32_t arithmetic, which can silently wrap to a small value on overflow. This would cause krealloc to return a smaller buffer than expected, leading to heap overflows on subsequent vector appends. Replace krealloc() with krealloc_array() which performs an internal overflow check and returns NULL on wrap, preventing the issue. (cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < 9540b0a4d13e4ede64ae1197d66a176d2149daa9 (git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < 31180638a33acad12c863132704a76536fb66211 (git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < b15825deac1acff72638bbc8f05b89ceef8dfb13 (git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < 201151e120f0062bcda21cad5d007b82725ad23b (git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < a914aa802669e073f014dae2e5708633b5cecd34 (git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < e09689286385a66311ac6922af95339d7a3cef8d (git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < de988c7a31f0774f07894cfe4802996f318e2870 (git)
Affected: 2004f45ef83f07f43f5da6ede780b08068c7583d , < da48bc4461b8a5ebfb9264c9b191a701d8e99009 (git)
Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 5.10.260 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/basics/vector.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9540b0a4d13e4ede64ae1197d66a176d2149daa9",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            },
            {
              "lessThan": "31180638a33acad12c863132704a76536fb66211",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            },
            {
              "lessThan": "b15825deac1acff72638bbc8f05b89ceef8dfb13",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            },
            {
              "lessThan": "201151e120f0062bcda21cad5d007b82725ad23b",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            },
            {
              "lessThan": "a914aa802669e073f014dae2e5708633b5cecd34",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            },
            {
              "lessThan": "e09689286385a66311ac6922af95339d7a3cef8d",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            },
            {
              "lessThan": "de988c7a31f0774f07894cfe4802996f318e2870",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            },
            {
              "lessThan": "da48bc4461b8a5ebfb9264c9b191a701d8e99009",
              "status": "affected",
              "version": "2004f45ef83f07f43f5da6ede780b08068c7583d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/basics/vector.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.260",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.94",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.260",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.210",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.176",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.143",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.94",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.36",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.13",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Use krealloc_array() in dal_vector_reserve()\n\n[Why \u0026 How]\ndal_vector_reserve() computes the allocation size as\n\"capacity * vector-\u003estruct_size\" using uint32_t arithmetic, which can\nsilently wrap to a small value on overflow. This would cause krealloc to\nreturn a smaller buffer than expected, leading to heap overflows on\nsubsequent vector appends.\n\nReplace krealloc() with krealloc_array() which performs an internal\noverflow check and returns NULL on wrap, preventing the issue.\n\n(cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-18T07:33:19.828Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9"
        },
        {
          "url": "https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211"
        },
        {
          "url": "https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13"
        },
        {
          "url": "https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b"
        },
        {
          "url": "https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34"
        },
        {
          "url": "https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d"
        },
        {
          "url": "https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870"
        },
        {
          "url": "https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009"
        }
      ],
      "title": "drm/amd/display: Use krealloc_array() in dal_vector_reserve()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53329",
    "datePublished": "2026-07-01T13:32:14.598Z",
    "dateReserved": "2026-06-09T07:44:35.398Z",
    "dateUpdated": "2026-07-18T07:33:19.828Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53329",
      "date": "2026-07-22",
      "epss": "0.00134",
      "percentile": "0.03337"
    },
    "microsoft_vex": {
      "current_release_date": "2026-07-09T14:50:35.000Z",
      "cve": "CVE-2026-53329",
      "id": "msrc_CVE-2026-53329",
      "initial_release_date": "2026-07-02T00:00:00.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/amd/display: Use krealloc_array() in dal_vector_reserve()",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-53329.json",
      "version": "3"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53329\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-07-01T14:16:40.760\",\"lastModified\":\"2026-07-18T08:16:35.673\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Use krealloc_array() in dal_vector_reserve()\\n\\n[Why \u0026 How]\\ndal_vector_reserve() computes the allocation size as\\n\\\"capacity * vector-\u003estruct_size\\\" using uint32_t arithmetic, which can\\nsilently wrap to a small value on overflow. This would cause krealloc to\\nreturn a smaller buffer than expected, leading to heap overflows on\\nsubsequent vector appends.\\n\\nReplace krealloc() with krealloc_array() which performs an internal\\noverflow check and returns NULL on wrap, preventing the issue.\\n\\n(cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/basics/vector.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"9540b0a4d13e4ede64ae1197d66a176d2149daa9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"31180638a33acad12c863132704a76536fb66211\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"b15825deac1acff72638bbc8f05b89ceef8dfb13\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"201151e120f0062bcda21cad5d007b82725ad23b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"a914aa802669e073f014dae2e5708633b5cecd34\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"e09689286385a66311ac6922af95339d7a3cef8d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"de988c7a31f0774f07894cfe4802996f318e2870\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2004f45ef83f07f43f5da6ede780b08068c7583d\",\"lessThan\":\"da48bc4461b8a5ebfb9264c9b191a701d8e99009\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/basics/vector.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.260\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.210\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.176\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.143\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.94\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.36\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.13\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-21T23:49:15Z",
      "cve": "CVE-2026-53329",
      "id": "CVE-2026-53329",
      "initial_release_date": "2026-07-03T03:04:30Z",
      "product_status:known_affected": "189",
      "product_status:known_not_affected": "35",
      "product_status:recommended": "98",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-53329",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53329.json",
      "version": "4"
    }
  }
}



Log in or create an account to share your comment.




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.