CVE-2025-40114 (GCVE-0-2025-40114)

Vulnerability from cvelistv5 – Published: 2025-04-18 07:01 – Updated: 2026-05-11 21:42
VLAI
Title
iio: light: Add check for array bounds in veml6075_read_int_time_ms
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: light: Add check for array bounds in veml6075_read_int_time_ms The array contains only 5 elements, but the index calculated by veml6075_read_int_time_index can range from 0 to 7, which could lead to out-of-bounds access. The check prevents this issue. Coverity Issue CID 1574309: (#1 of 1): Out-of-bounds read (OVERRUN) overrun-local: Overrunning array veml6075_it_ms of 5 4-byte elements at element index 7 (byte offset 31) using index int_index (which evaluates to 7) This is hardening against potentially broken hardware. Good to have but not necessary to backport.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 14:47 UTC
CWE
  • CWE-129 - Improper Validation of Array Index
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3b82f43238aecd73464aeacc9c73407079511533 , < 7a40b52d4442178bee0cf1c36bc450ab951cef0f (git)
Affected: 3b82f43238aecd73464aeacc9c73407079511533 , < 18a08b5632809faa671279b3cd27d5f96cc5a3f0 (git)
Affected: 3b82f43238aecd73464aeacc9c73407079511533 , < 9c40a68b7f97fa487e6c7e67fcf4f846a1f96692 (git)
Affected: 3b82f43238aecd73464aeacc9c73407079511533 , < ee735aa33db16c1fb5ebccbaf84ad38f5583f3cc (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.12.23 , ≤ 6.12.* (semver)
Unaffected: 6.13.11 , ≤ 6.13.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                  "version": "3b82f43238aecd73464aeacc9c73407079511533",
                  "versionType": "git"
                },
                {
                  "lessThan": "ee735aa33db16c1fb5ebccbaf84ad38f5583f3cc",
                  "status": "affected",
                  "version": "3b82f43238aecd73464aeacc9c73407079511533",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/iio/light/veml6075.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.8"
                },
                {
                  "lessThan": "6.8",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.23",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.13.*",
                  "status": "unaffected",
                  "version": "6.13.11",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.14.*",
                  "status": "unaffected",
                  "version": "6.14.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.15",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.23",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13.11",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.14.2",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.15",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: light: Add check for array bounds in veml6075_read_int_time_ms\n\nThe array contains only 5 elements, but the index calculated by\nveml6075_read_int_time_index can range from 0 to 7,\nwhich could lead to out-of-bounds access. The check prevents this issue.\n\nCoverity Issue\nCID 1574309: (#1 of 1): Out-of-bounds read (OVERRUN)\noverrun-local: Overrunning array veml6075_it_ms of 5 4-byte\nelements at element index 7 (byte offset 31) using\nindex int_index (which evaluates to 7)\n\nThis is hardening against potentially broken hardware. Good to have\nbut not necessary to backport."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T21:42:55.223Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/7a40b52d4442178bee0cf1c36bc450ab951cef0f"
            },
            {
              "url": "https://git.kernel.org/stable/c/18a08b5632809faa671279b3cd27d5f96cc5a3f0"
            },
            {
              "url": "https://git.kernel.org/stable/c/9c40a68b7f97fa487e6c7e67fcf4f846a1f96692"
            },
            {
              "url": "https://git.kernel.org/stable/c/ee735aa33db16c1fb5ebccbaf84ad38f5583f3cc"
            }
          ],
          "title": "iio: light: Add check for array bounds in veml6075_read_int_time_ms",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2025-40114",
        "datePublished": "2025-04-18T07:01:40.964Z",
        "dateReserved": "2025-04-16T07:20:57.168Z",
        "dateUpdated": "2026-05-11T21:42:55.223Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • 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.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
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Vulnerability timeline

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

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