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CVE-2023-53753 (GCVE-0-2023-53753)

Vulnerability from cvelistv5 – Published: 2025-12-08 01:19 – Updated: 2026-08-05 09:15
VLAI
Title
drm/amd/display: fix mapping to non-allocated address
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix mapping to non-allocated address [Why] There is an issue mapping non-allocated location of memory. It would allocate gpio registers from an array out of bounds. [How] Patch correct numbers of bounds for using.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 8ce8a443ddd9002861a4ee8a7e33a0c02717422f (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 24aaf6603600d6d1159973c809ea2737664b28c4 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 9190d4a263264eabf715f5fc1827da45e3fdc247 (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_factory_dcn20.c",
            "drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c",
            "drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_factory_dcn32.c",
            "drivers/gpu/drm/amd/display/dc/gpio/ddc_regs.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8ce8a443ddd9002861a4ee8a7e33a0c02717422f",
              "status": "affected",
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "versionType": "git"
            },
            {
              "lessThan": "24aaf6603600d6d1159973c809ea2737664b28c4",
              "status": "affected",
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "versionType": "git"
            },
            {
              "lessThan": "9190d4a263264eabf715f5fc1827da45e3fdc247",
              "status": "affected",
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_factory_dcn20.c",
            "drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c",
            "drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_factory_dcn32.c",
            "drivers/gpu/drm/amd/display/dc/gpio/ddc_regs.h"
          ],
          "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": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.16",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.3",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "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: fix mapping to non-allocated address\n\n[Why]\nThere is an issue mapping non-allocated location of memory.\nIt would allocate gpio registers from an array out of bounds.\n\n[How]\nPatch correct numbers of bounds for using."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The amdgpu/DC display stack is a local device driver; the out-of-bounds indexing is reached through driver initialization and DDC/I2C transactions driven by local DRM ioctls on /dev/dri/card* (forced connector probe \u2192 drm_get_edid \u2192 dc_submit_i2c \u2192 dal_ddc_open \u2192 define_ddc_registers). There is no network-facing path to this code.\nAC:L - On an affected DCN2/DCN3/DCN3.2 board whose VBIOS maps a DDC/OEM-I2C line to the DC_GPIO_DDCVGA_A pad, en==GPIO_DDC_LINE_DDC_VGA is produced deterministically and the \u0026ddc_shift[6]/\u0026ddc_mask[6] overread happens on every gpio open \u2014 no race, no memory-layout grooming, and the attacker can repeat connector probes at will.\nPR:L - An unprivileged local user with a normal DRM/render node handle (video/render group, granted to the active logind session on desktops and to app processes on Android) can force connector detection and EDID/I2C traffic over the affected DDC line; no CAP_SYS_ADMIN or root is required.\nUI:N - The vulnerable path is entered by the driver itself at resource-pool/link init and by any programmatic connector probe or i2c transfer; no victim action such as plugging a monitor or opening a file is needed.\nS:U - The out-of-bounds access and its effects are entirely within the kernel\u0027s own security authority (kernel .rodata read plus GPU register programming by the same driver); no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is an out-of-bounds read of 40 bytes of kernel .rodata beyond the end of ddc_shift[]/ddc_mask[] \u2014 well past a \"few bytes\" \u2014 and the leaked adjacent kernel constants are consumed as bitfield descriptors whose effect on the GPIO/I2C register state is observable to the caller performing DDC transactions.\nI:H - The out-of-bounds-derived shift and mask values are fed directly into REG_SET/REG_UPDATE read-modify-write sequences against the GPU\u0027s DDC GPIO MASK register, so arbitrary unintended bits of live hardware control registers are overwritten with values the driver never validated.\nA:H - Misprogramming the DDC/I2C pad control bits wedges display detection and I2C on that line, and the global-out-of-bounds access plus the resulting out-of-range shift counts trigger KASAN/UBSAN reports that panic the kernel under panic_on_warn, which is standard on hardened and Android builds."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:15:50.057Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8ce8a443ddd9002861a4ee8a7e33a0c02717422f"
        },
        {
          "url": "https://git.kernel.org/stable/c/24aaf6603600d6d1159973c809ea2737664b28c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/9190d4a263264eabf715f5fc1827da45e3fdc247"
        }
      ],
      "title": "drm/amd/display: fix mapping to non-allocated address",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53753",
    "datePublished": "2025-12-08T01:19:13.743Z",
    "dateReserved": "2025-12-08T01:18:04.279Z",
    "dateUpdated": "2026-08-05T09:15:50.057Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53753",
      "date": "2026-09-15",
      "epss": "0.00141",
      "percentile": "0.03758"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53753\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-08T02:15:50.847\",\"lastModified\":\"2026-08-04T10:19:20.073\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: fix mapping to non-allocated address\\n\\n[Why]\\nThere is an issue mapping non-allocated location of memory.\\nIt would allocate gpio registers from an array out of bounds.\\n\\n[How]\\nPatch correct numbers of bounds for using.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_factory_dcn20.c\",\"drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c\",\"drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_factory_dcn32.c\",\"drivers/gpu/drm/amd/display/dc/gpio/ddc_regs.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"8ce8a443ddd9002861a4ee8a7e33a0c02717422f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"24aaf6603600d6d1159973c809ea2737664b28c4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\",\"lessThan\":\"9190d4a263264eabf715f5fc1827da45e3fdc247\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/gpio/dcn20/hw_factory_dcn20.c\",\"drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c\",\"drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_factory_dcn32.c\",\"drivers/gpu/drm/amd/display/dc/gpio/ddc_regs.h\"],\"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\":\"6.1.16\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2.3\",\"lessThanOrEqual\":\"6.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.3\",\"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:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/24aaf6603600d6d1159973c809ea2737664b28c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8ce8a443ddd9002861a4ee8a7e33a0c02717422f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9190d4a263264eabf715f5fc1827da45e3fdc247\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:15:16+00:00",
      "cve": "CVE-2023-53753",
      "id": "CVE-2023-53753",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "124",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amd/display: fix mapping to non-allocated address",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53753.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T01:15:38Z",
      "cve": "CVE-2023-53753",
      "id": "CVE-2023-53753",
      "initial_release_date": "2025-12-09T00:29:15Z",
      "product_status:known_affected": "502",
      "product_status:known_not_affected": "320",
      "product_status:recommended": "136",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53753",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53753.json",
      "version": "16"
    }
  }
}



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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.