{
  "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-2024-50177",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-50177",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-11-08T05:23:59.205Z",
    "updatedAt": "2026-05-11T20:46:55.902Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "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/amd/display: fix a UBSAN warning in DML2.1",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix a UBSAN warning in DML2.1\n\nWhen programming phantom pipe, since cursor_width is explicity set to 0,\nthis causes calculation logic to trigger overflow for an unsigned int\ntriggering the kernel's UBSAN check as below:\n\n[   40.962845] UBSAN: shift-out-of-bounds in /tmp/amd.EfpumTkO/amd/amdgpu/../display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c:3312:34\n[   40.962849] shift exponent 4294967170 is too large for 32-bit type 'unsigned int'\n[   40.962852] CPU: 1 PID: 1670 Comm: gnome-shell Tainted: G        W  OE      6.5.0-41-generic #41~22.04.2-Ubuntu\n[   40.962854] Hardware name: Gigabyte Technology Co., Ltd. X670E AORUS PRO X/X670E AORUS PRO X, BIOS F21 01/10/2024\n[   40.962856] Call Trace:\n[   40.962857]  <TASK>\n[   40.962860]  dump_stack_lvl+0x48/0x70\n[   40.962870]  dump_stack+0x10/0x20\n[   40.962872]  __ubsan_handle_shift_out_of_bounds+0x1ac/0x360\n[   40.962878]  calculate_cursor_req_attributes.cold+0x1b/0x28 [amdgpu]\n[   40.963099]  dml_core_mode_support+0x6b91/0x16bc0 [amdgpu]\n[   40.963327]  ? srso_alias_return_thunk+0x5/0x7f\n[   40.963331]  ? CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport+0x18b8/0x2790 [amdgpu]\n[   40.963534]  ? srso_alias_return_thunk+0x5/0x7f\n[   40.963536]  ? dml_core_mode_support+0xb3db/0x16bc0 [amdgpu]\n[   40.963730]  dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu]\n[   40.963906]  ? srso_alias_return_thunk+0x5/0x7f\n[   40.963909]  ? dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu]\n[   40.964078]  core_dcn4_mode_support+0x72/0xbf0 [amdgpu]\n[   40.964247]  dml2_top_optimization_perform_optimization_phase+0x1d3/0x2a0 [amdgpu]\n[   40.964420]  dml2_build_mode_programming+0x23d/0x750 [amdgpu]\n[   40.964587]  dml21_validate+0x274/0x770 [amdgpu]\n[   40.964761]  ? srso_alias_return_thunk+0x5/0x7f\n[   40.964763]  ? resource_append_dpp_pipes_for_plane_composition+0x27c/0x3b0 [amdgpu]\n[   40.964942]  dml2_validate+0x504/0x750 [amdgpu]\n[   40.965117]  ? dml21_copy+0x95/0xb0 [amdgpu]\n[   40.965291]  ? srso_alias_return_thunk+0x5/0x7f\n[   40.965295]  dcn401_validate_bandwidth+0x4e/0x70 [amdgpu]\n[   40.965491]  update_planes_and_stream_state+0x38d/0x5c0 [amdgpu]\n[   40.965672]  update_planes_and_stream_v3+0x52/0x1e0 [amdgpu]\n[   40.965845]  ? srso_alias_return_thunk+0x5/0x7f\n[   40.965849]  dc_update_planes_and_stream+0x71/0xb0 [amdgpu]\n\nFix this by adding a guard for checking cursor width before triggering\nthe size calculation.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "70839da6360500a82e4d5f78499284474cbed7c1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "27bc3da5eae57e3af8f5648b4498ffde48781434"
            },
            {
              "version": "70839da6360500a82e4d5f78499284474cbed7c1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eaf3adb8faab611ba57594fa915893fc93a7788c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.11"
            },
            {
              "version": "6.11.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}