CVE-2025-21874 (GCVE-0-2025-21874)
Vulnerability from cvelistv5
Published
2025-03-27 14:57
Modified
2025-05-04 07:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: dm-integrity: Avoid divide by zero in table status in Inline mode In Inline mode, the journal is unused, and journal_sectors is zero. Calculating the journal watermark requires dividing by journal_sectors, which should be done only if the journal is configured. Otherwise, a simple table query (dmsetup table) can cause OOPS. This bug did not show on some systems, perhaps only due to compiler optimization. On my 32-bit testing machine, this reliably crashes with the following: : Oops: divide error: 0000 [#1] PREEMPT SMP : CPU: 0 UID: 0 PID: 2450 Comm: dmsetup Not tainted 6.14.0-rc2+ #959 : EIP: dm_integrity_status+0x2f8/0xab0 [dm_integrity] ...
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06d9895f265282e939a8933bb18de82eba2b4dda
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/22c6f577b3cb184857b440ae5e5916f6c9e7021d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7fb39882b20c98a9a393c244c86b56ef6933cff8
Impacted products
Vendor Product Version
Linux Linux Version: fb0987682c629c1d2c476f35f6fde405a5e304a4
Version: fb0987682c629c1d2c476f35f6fde405a5e304a4
Version: fb0987682c629c1d2c476f35f6fde405a5e304a4
 Create a notification for this product.
   Linux Linux Version: 6.11
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-integrity.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "22c6f577b3cb184857b440ae5e5916f6c9e7021d",
              "status": "affected",
              "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4",
              "versionType": "git"
            },
            {
              "lessThan": "06d9895f265282e939a8933bb18de82eba2b4dda",
              "status": "affected",
              "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4",
              "versionType": "git"
            },
            {
              "lessThan": "7fb39882b20c98a9a393c244c86b56ef6933cff8",
              "status": "affected",
              "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-integrity.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.18",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.6",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: Avoid divide by zero in table status in Inline mode\n\nIn Inline mode, the journal is unused, and journal_sectors is zero.\n\nCalculating the journal watermark requires dividing by journal_sectors,\nwhich should be done only if the journal is configured.\n\nOtherwise, a simple table query (dmsetup table) can cause OOPS.\n\nThis bug did not show on some systems, perhaps only due to\ncompiler optimization.\n\nOn my 32-bit testing machine, this reliably crashes with the following:\n\n : Oops: divide error: 0000 [#1] PREEMPT SMP\n : CPU: 0 UID: 0 PID: 2450 Comm: dmsetup Not tainted 6.14.0-rc2+ #959\n : EIP: dm_integrity_status+0x2f8/0xab0 [dm_integrity]\n ..."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:22:59.895Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/22c6f577b3cb184857b440ae5e5916f6c9e7021d"
        },
        {
          "url": "https://git.kernel.org/stable/c/06d9895f265282e939a8933bb18de82eba2b4dda"
        },
        {
          "url": "https://git.kernel.org/stable/c/7fb39882b20c98a9a393c244c86b56ef6933cff8"
        }
      ],
      "title": "dm-integrity: Avoid divide by zero in table status in Inline mode",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21874",
    "datePublished": "2025-03-27T14:57:05.496Z",
    "dateReserved": "2024-12-29T08:45:45.781Z",
    "dateUpdated": "2025-05-04T07:22:59.895Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21874\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-27T15:15:55.203\",\"lastModified\":\"2025-03-27T16:45:12.210\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndm-integrity: Avoid divide by zero in table status in Inline mode\\n\\nIn Inline mode, the journal is unused, and journal_sectors is zero.\\n\\nCalculating the journal watermark requires dividing by journal_sectors,\\nwhich should be done only if the journal is configured.\\n\\nOtherwise, a simple table query (dmsetup table) can cause OOPS.\\n\\nThis bug did not show on some systems, perhaps only due to\\ncompiler optimization.\\n\\nOn my 32-bit testing machine, this reliably crashes with the following:\\n\\n : Oops: divide error: 0000 [#1] PREEMPT SMP\\n : CPU: 0 UID: 0 PID: 2450 Comm: dmsetup Not tainted 6.14.0-rc2+ #959\\n : EIP: dm_integrity_status+0x2f8/0xab0 [dm_integrity]\\n ...\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/06d9895f265282e939a8933bb18de82eba2b4dda\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/22c6f577b3cb184857b440ae5e5916f6c9e7021d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7fb39882b20c98a9a393c244c86b56ef6933cff8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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 seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.