CVE-2023-53261 (GCVE-0-2023-53261)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:46 – Updated: 2026-01-14 18:12
VLAI?
Title
coresight: Fix memory leak in acpi_buffer->pointer
Summary
In the Linux kernel, the following vulnerability has been resolved: coresight: Fix memory leak in acpi_buffer->pointer There are memory leaks reported by kmemleak: ... unreferenced object 0xffff00213c141000 (size 1024): comm "systemd-udevd", pid 2123, jiffies 4294909467 (age 6062.160s) hex dump (first 32 bytes): 04 00 00 00 02 00 00 00 18 10 14 3c 21 00 ff ff ...........<!... 00 00 00 00 00 00 00 00 03 00 00 00 10 00 00 00 ................ backtrace: [<000000004b7c9001>] __kmem_cache_alloc_node+0x2f8/0x348 [<00000000b0fc7ceb>] __kmalloc+0x58/0x108 [<0000000064ff4695>] acpi_os_allocate+0x2c/0x68 [<000000007d57d116>] acpi_ut_initialize_buffer+0x54/0xe0 [<0000000024583908>] acpi_evaluate_object+0x388/0x438 [<0000000017b2e72b>] acpi_evaluate_object_typed+0xe8/0x240 [<000000005df0eac2>] coresight_get_platform_data+0x1b4/0x988 [coresight] ... The ACPI buffer memory (buf.pointer) should be freed. But the buffer is also used after returning from acpi_get_dsd_graph(). Move the temporary variables buf to acpi_coresight_parse_graph(), and free it before the function return to prevent memory leak.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 76ffa5ab5b79c250b9744b7f8bdd835db426a1ae , < d1b60e7c9fee34eaedf1fc4e0471f75b33f83a4a (git)
Affected: 76ffa5ab5b79c250b9744b7f8bdd835db426a1ae , < 1a9e02673e2550f5612099e64e8761f0c8fc0f50 (git)
Create a notification for this product.
    Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 6.5.3 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-53261",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:02:51.752323Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-401",
                "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T18:12:51.941Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-platform.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d1b60e7c9fee34eaedf1fc4e0471f75b33f83a4a",
              "status": "affected",
              "version": "76ffa5ab5b79c250b9744b7f8bdd835db426a1ae",
              "versionType": "git"
            },
            {
              "lessThan": "1a9e02673e2550f5612099e64e8761f0c8fc0f50",
              "status": "affected",
              "version": "76ffa5ab5b79c250b9744b7f8bdd835db426a1ae",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-platform.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.3",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: Fix memory leak in acpi_buffer-\u003epointer\n\nThere are memory leaks reported by kmemleak:\n...\nunreferenced object 0xffff00213c141000 (size 1024):\n  comm \"systemd-udevd\", pid 2123, jiffies 4294909467 (age 6062.160s)\n  hex dump (first 32 bytes):\n    04 00 00 00 02 00 00 00 18 10 14 3c 21 00 ff ff  ...........\u003c!...\n    00 00 00 00 00 00 00 00 03 00 00 00 10 00 00 00  ................\n  backtrace:\n    [\u003c000000004b7c9001\u003e] __kmem_cache_alloc_node+0x2f8/0x348\n    [\u003c00000000b0fc7ceb\u003e] __kmalloc+0x58/0x108\n    [\u003c0000000064ff4695\u003e] acpi_os_allocate+0x2c/0x68\n    [\u003c000000007d57d116\u003e] acpi_ut_initialize_buffer+0x54/0xe0\n    [\u003c0000000024583908\u003e] acpi_evaluate_object+0x388/0x438\n    [\u003c0000000017b2e72b\u003e] acpi_evaluate_object_typed+0xe8/0x240\n    [\u003c000000005df0eac2\u003e] coresight_get_platform_data+0x1b4/0x988 [coresight]\n...\n\nThe ACPI buffer memory (buf.pointer) should be freed. But the buffer\nis also used after returning from acpi_get_dsd_graph().\nMove the temporary variables buf to acpi_coresight_parse_graph(),\nand free it before the function return to prevent memory leak."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-15T14:46:33.065Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d1b60e7c9fee34eaedf1fc4e0471f75b33f83a4a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a9e02673e2550f5612099e64e8761f0c8fc0f50"
        }
      ],
      "title": "coresight: Fix memory leak in acpi_buffer-\u003epointer",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53261",
    "datePublished": "2025-09-15T14:46:33.065Z",
    "dateReserved": "2025-09-15T14:19:21.850Z",
    "dateUpdated": "2026-01-14T18:12:51.941Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-15T14:46:33.065Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncoresight: Fix memory leak in acpi_buffer-\u003epointer\\n\\nThere are memory leaks reported by kmemleak:\\n...\\nunreferenced object 0xffff00213c141000 (size 1024):\\n  comm \\\"systemd-udevd\\\", pid 2123, jiffies 4294909467 (age 6062.160s)\\n  hex dump (first 32 bytes):\\n    04 00 00 00 02 00 00 00 18 10 14 3c 21 00 ff ff  ...........\u003c!...\\n    00 00 00 00 00 00 00 00 03 00 00 00 10 00 00 00  ................\\n  backtrace:\\n    [\u003c000000004b7c9001\u003e] __kmem_cache_alloc_node+0x2f8/0x348\\n    [\u003c00000000b0fc7ceb\u003e] __kmalloc+0x58/0x108\\n    [\u003c0000000064ff4695\u003e] acpi_os_allocate+0x2c/0x68\\n    [\u003c000000007d57d116\u003e] acpi_ut_initialize_buffer+0x54/0xe0\\n    [\u003c0000000024583908\u003e] acpi_evaluate_object+0x388/0x438\\n    [\u003c0000000017b2e72b\u003e] acpi_evaluate_object_typed+0xe8/0x240\\n    [\u003c000000005df0eac2\u003e] coresight_get_platform_data+0x1b4/0x988 [coresight]\\n...\\n\\nThe ACPI buffer memory (buf.pointer) should be freed. But the buffer\\nis also used after returning from acpi_get_dsd_graph().\\nMove the temporary variables buf to acpi_coresight_parse_graph(),\\nand free it before the function return to prevent memory leak.\"}], \"affected\": [{\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"unaffected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"drivers/hwtracing/coresight/coresight-platform.c\"], \"versions\": [{\"version\": \"76ffa5ab5b79c250b9744b7f8bdd835db426a1ae\", \"lessThan\": \"d1b60e7c9fee34eaedf1fc4e0471f75b33f83a4a\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"76ffa5ab5b79c250b9744b7f8bdd835db426a1ae\", \"lessThan\": \"1a9e02673e2550f5612099e64e8761f0c8fc0f50\", \"status\": \"affected\", \"versionType\": \"git\"}]}, {\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"affected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"drivers/hwtracing/coresight/coresight-platform.c\"], \"versions\": [{\"version\": \"5.3\", \"status\": \"affected\"}, {\"version\": \"0\", \"lessThan\": \"5.3\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"6.5.3\", \"lessThanOrEqual\": \"6.5.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"6.6\", \"lessThanOrEqual\": \"*\", \"status\": \"unaffected\", \"versionType\": \"original_commit_for_fix\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.3\", \"versionEndExcluding\": \"6.5.3\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.3\", \"versionEndExcluding\": \"6.6\"}]}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d1b60e7c9fee34eaedf1fc4e0471f75b33f83a4a\"}, {\"url\": \"https://git.kernel.org/stable/c/1a9e02673e2550f5612099e64e8761f0c8fc0f50\"}], \"title\": \"coresight: Fix memory leak in acpi_buffer-\u003epointer\", \"x_generator\": {\"engine\": \"bippy-1.2.0\"}}, \"adp\": [{\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53261\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:02:51.752323Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401 Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-01-14T18:02:47.669Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-53261\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2025-09-15T14:19:21.850Z\", \"datePublished\": \"2025-09-15T14:46:33.065Z\", \"dateUpdated\": \"2025-09-15T14:46:33.065Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.