{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-53991",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53991",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-24T10:55:29.833Z",
    "updatedAt": "2026-05-11T19:53:10.724Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "drm/msm/dpu: Disallow unallocated resources to be returned",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dpu: Disallow unallocated resources to be returned\n\nIn the event that the topology requests resources that have not been\ncreated by the system (because they are typically not represented in\ndpu_mdss_cfg ^1), the resource(s) in global_state (in this case DSC\nblocks, until their allocation/assignment is being sanity-checked in\n\"drm/msm/dpu: Reject topologies for which no DSC blocks are available\")\nremain NULL but will still be returned out of\ndpu_rm_get_assigned_resources, where the caller expects to get an array\ncontaining num_blks valid pointers (but instead gets these NULLs).\n\nTo prevent this from happening, where null-pointer dereferences\ntypically result in a hard-to-debug platform lockup, num_blks shouldn't\nincrease past NULL blocks and will print an error and break instead.\nAfter all, max_blks represents the static size of the maximum number of\nblocks whereas the actual amount varies per platform.\n\n^1: which can happen after a git rebase ended up moving additions to\n_dpu_cfg to a different struct which has the same patch context.\n\nPatchwork: https://patchwork.freedesktop.org/patch/517636/",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bb00a452d6f77391441ef7df48f7115dd459cd2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8dbd54d679e3ab37be43bc1ed9f463dbf83a2259"
            },
            {
              "version": "bb00a452d6f77391441ef7df48f7115dd459cd2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bf661c5e3bc48973acb363c76e3db965d9ed26d0"
            },
            {
              "version": "bb00a452d6f77391441ef7df48f7115dd459cd2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9e1e236acdc42b5c43ec8d7f03a39537e70cc309"
            },
            {
              "version": "bb00a452d6f77391441ef7df48f7115dd459cd2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9fe3644c720ac87d150f0bba5a4ae86cae55afaf"
            },
            {
              "version": "bb00a452d6f77391441ef7df48f7115dd459cd2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "abc40122d9a69f56c04efb5a7485795f5ac799d1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.7"
            },
            {
              "version": "5.10.173",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.99",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}