CVE-2023-53341 (GCVE-0-2023-53341)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-05-11 19:43
VLAI
Title
of/fdt: run soc memory setup when early_init_dt_scan_memory fails
Summary
In the Linux kernel, the following vulnerability has been resolved: of/fdt: run soc memory setup when early_init_dt_scan_memory fails If memory has been found early_init_dt_scan_memory now returns 1. If it hasn't found any memory it will return 0, allowing other memory setup mechanisms to carry on. Previously early_init_dt_scan_memory always returned 0 without distinguishing between any kind of memory setup being done or not. Any code path after the early_init_dt_scan memory call in the ramips plat_mem_setup code wouldn't be executed anymore. Making early_init_dt_scan_memory the only way to initialize the memory. Some boards, including my mt7621 based Cudy X6 board, depend on memory initialization being done via the soc_info.mem_detect function pointer. Those wouldn't be able to obtain memory and panic the kernel during early bootup with the message "early_init_dt_alloc_memory_arch: Failed to allocate 12416 bytes align=0x40".
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:38 UTC
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1f012283e9360fb4007308f04cfaeb205e34b684 , < 04836fc5b720dfa32ff781383d84f63019abf9b9 (git)
Affected: 1f012283e9360fb4007308f04cfaeb205e34b684 , < c4849f18185fd4e93b04cd45552f8d68c0240e21 (git)
Affected: 1f012283e9360fb4007308f04cfaeb205e34b684 , < 2a12187d5853d9fd5102278cecef7dac7c8ce7ea (git)
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Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 6.0.19 , ≤ 6.0.* (semver)
Unaffected: 6.1.5 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.0.19",
                      "versionStartIncluding": "5.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.5",
                      "versionStartIncluding": "5.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.2",
                      "versionStartIncluding": "5.17",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof/fdt: run soc memory setup when early_init_dt_scan_memory fails\n\nIf memory has been found early_init_dt_scan_memory now returns 1. If\nit hasn\u0027t found any memory it will return 0, allowing other memory\nsetup mechanisms to carry on.\n\nPreviously early_init_dt_scan_memory always returned 0 without\ndistinguishing between any kind of memory setup being done or not. Any\ncode path after the early_init_dt_scan memory call in the ramips\nplat_mem_setup code wouldn\u0027t be executed anymore. Making\nearly_init_dt_scan_memory the only way to initialize the memory.\n\nSome boards, including my mt7621 based Cudy X6 board, depend on memory\ninitialization being done via the soc_info.mem_detect function\npointer. Those wouldn\u0027t be able to obtain memory and panic the kernel\nduring early bootup with the message \"early_init_dt_alloc_memory_arch:\nFailed to allocate 12416 bytes align=0x40\"."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-09-17T14:56:34.671Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/04836fc5b720dfa32ff781383d84f63019abf9b9"
            },
            {
              "url": "https://git.kernel.org/stable/c/c4849f18185fd4e93b04cd45552f8d68c0240e21"
            },
            {
              "url": "https://git.kernel.org/stable/c/2a12187d5853d9fd5102278cecef7dac7c8ce7ea"
            }
          ],
          "title": "of/fdt: run soc memory setup when early_init_dt_scan_memory fails",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-53341",
        "datePublished": "2025-09-17T14:56:34.671Z",
        "dateReserved": "2025-09-16T16:08:59.565Z",
        "dateUpdated": "2026-01-14T18:43:01.930Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.