{
  "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-2026-46276",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-46276",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-08T15:41:18.672Z",
    "updatedAt": "2026-06-14T18:05:43.582Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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/amdgpu: fix zero-size GDS range init on RDNA4",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix zero-size GDS range init on RDNA4\n\nRDNA4 (GFX 12) hardware removes the GDS, GWS, and OA on-chip memory\nresources. The gfx_v12_0 initialisation code correctly leaves\nadev->gds.gds_size, adev->gds.gws_size, and adev->gds.oa_size at\nzero to reflect this.\n\namdgpu_ttm_init() unconditionally calls amdgpu_ttm_init_on_chip() for\neach of these resources regardless of size. When the size is zero,\namdgpu_ttm_init_on_chip() forwards the call to ttm_range_man_init(),\nwhich calls drm_mm_init(mm, 0, 0). drm_mm_init() immediately fires\nDRM_MM_BUG_ON(start + size <= start) -- trivially true when size is\nzero -- crashing the kernel during modprobe of amdgpu on an RX 9070 XT.\n\nGuard against this by returning 0 early from\namdgpu_ttm_init_on_chip() when size_in_page is zero. This skips TTM\nresource manager registration for hardware resources that are absent,\nwithout affecting any other GPU type.\n\nDRM_MM_BUG_ON() only asserts if CONFIG_DRM_DEBUG_MM is enabled in\nthe kernel config.  This is apparently rarely enabled as these chips\nhave been in the market for over a year and this issue was only reported\nnow.\n\nOops-Analysis: http://oops.fenrus.org/reports/bugzilla.korg/221376/report.html\n(cherry picked from commit 5719ce5865279cad4fd5f01011fe037168503f2d)",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1f5d33e7b0a9a2a140f46e22fb52eede323c5946"
            },
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9bc925759c05feae7dfa9570e77131d54729c8ea"
            },
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "36f9602fb22ede69fcc8b422be0cf8105bf655ad"
            },
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "be0376affcafa0bbb371bb501579a825eae32281"
            },
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0e21db1a77967bc15df662efdca8ea8a61d124ea"
            },
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "30c000a49094ec568c9b51b7421f7a4a3f0b0298"
            },
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3e26c76891ab99fa173e9c501119fbb5c9f4600f"
            },
            {
              "version": "c832c346cdf9022872655be621880e0f66f4135d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "095a8b0ad3c3b5cdc3850d961adb8a8f735220bb"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.20",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.140",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.86",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.27",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}