CVE-2024-26816 (GCVE-0-2024-26816)

Vulnerability from cvelistv5 – Published: 2024-04-10 13:53 – Updated: 2026-05-12 11:49
VLAI
Title
x86, relocs: Ignore relocations in .notes section
Summary
In the Linux kernel, the following vulnerability has been resolved: x86, relocs: Ignore relocations in .notes section When building with CONFIG_XEN_PV=y, .text symbols are emitted into the .notes section so that Xen can find the "startup_xen" entry point. This information is used prior to booting the kernel, so relocations are not useful. In fact, performing relocations against the .notes section means that the KASLR base is exposed since /sys/kernel/notes is world-readable. To avoid leaking the KASLR base without breaking unprivileged tools that are expecting to read /sys/kernel/notes, skip performing relocations in the .notes section. The values readable in .notes are then identical to those found in System.map.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-21 16:05 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < 13edb509abc91c72152a11baaf0e7c060a312e03 (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < 52018aa146e3cf76569a9b1e6e49a2b7c8d4a088 (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < a4e7ff1a74274e59a2de9bb57236542aa990d20a (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < c7cff9780297d55d97ad068b68b703cfe53ef9af (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < 47635b112a64b7b208224962471e7e42f110e723 (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < af2a9f98d884205145fd155304a6955822ccca1c (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < ae7079238f6faf1b94accfccf334e98b46a0c0aa (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < 5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40 (git)
Affected: 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045 , < aaa8736370db1a78f0e8434344a484f9fd20be3b (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.23
Unaffected: 0 , < 2.6.23 (semver)
Unaffected: 4.19.311 , ≤ 4.19.* (semver)
Unaffected: 5.4.273 , ≤ 5.4.* (semver)
Unaffected: 5.10.214 , ≤ 5.10.* (semver)
Unaffected: 5.15.153 , ≤ 5.15.* (semver)
Unaffected: 6.1.83 , ≤ 6.1.* (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
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                      "versionStartIncluding": "2.6.23",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.153",
                      "versionStartIncluding": "2.6.23",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.83",
                      "versionStartIncluding": "2.6.23",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.23",
                      "versionStartIncluding": "2.6.23",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.7.11",
                      "versionStartIncluding": "2.6.23",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8.2",
                      "versionStartIncluding": "2.6.23",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.9",
                      "versionStartIncluding": "2.6.23",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86, relocs: Ignore relocations in .notes section\n\nWhen building with CONFIG_XEN_PV=y, .text symbols are emitted into\nthe .notes section so that Xen can find the \"startup_xen\" entry point.\nThis information is used prior to booting the kernel, so relocations\nare not useful. In fact, performing relocations against the .notes\nsection means that the KASLR base is exposed since /sys/kernel/notes\nis world-readable.\n\nTo avoid leaking the KASLR base without breaking unprivileged tools that\nare expecting to read /sys/kernel/notes, skip performing relocations in\nthe .notes section. The values readable in .notes are then identical to\nthose found in System.map."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:04:43.802Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03"
            },
            {
              "url": "https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088"
            },
            {
              "url": "https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a"
            },
            {
              "url": "https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af"
            },
            {
              "url": "https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723"
            },
            {
              "url": "https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c"
            },
            {
              "url": "https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa"
            },
            {
              "url": "https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40"
            },
            {
              "url": "https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b"
            }
          ],
          "title": "x86, relocs: Ignore relocations in .notes section",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-26816",
        "datePublished": "2024-04-10T13:53:49.492Z",
        "dateReserved": "2024-02-19T14:20:24.180Z",
        "dateUpdated": "2026-05-12T11:49:30.301Z",
        "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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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.



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.