CVE-2022-49710 (GCVE-0-2022-49710)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:24 – Updated: 2026-05-11 19:05
VLAI
Title
dm mirror log: round up region bitmap size to BITS_PER_LONG
Summary
In the Linux kernel, the following vulnerability has been resolved: dm mirror log: round up region bitmap size to BITS_PER_LONG The code in dm-log rounds up bitset_size to 32 bits. It then uses find_next_zero_bit_le on the allocated region. find_next_zero_bit_le accesses the bitmap using unsigned long pointers. So, on 64-bit architectures, it may access 4 bytes beyond the allocated size. Fix this bug by rounding up bitset_size to BITS_PER_LONG. This bug was found by running the lvm2 testsuite with kasan.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 29121bd0b00ebb9524971a583fea4a2f7afe8041 , < ae460312875159285cef5bf3dc654593f404a1ef (git)
Affected: 29121bd0b00ebb9524971a583fea4a2f7afe8041 , < ba751f0d25f07aa21ce9b85372a3792bf7969d13 (git)
Affected: 29121bd0b00ebb9524971a583fea4a2f7afe8041 , < 0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9 (git)
Affected: 29121bd0b00ebb9524971a583fea4a2f7afe8041 , < 9a02f3275acc628c0d956be771405ced79ac36df (git)
Affected: 29121bd0b00ebb9524971a583fea4a2f7afe8041 , < 85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.18
Unaffected: 0 , < 2.6.18 (semver)
Unaffected: 5.4.200 , ≤ 5.4.* (semver)
Unaffected: 5.10.124 , ≤ 5.10.* (semver)
Unaffected: 5.15.49 , ≤ 5.15.* (semver)
Unaffected: 5.18.6 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ae460312875159285cef5bf3dc654593f404a1ef",
              "status": "affected",
              "version": "29121bd0b00ebb9524971a583fea4a2f7afe8041",
              "versionType": "git"
            },
            {
              "lessThan": "ba751f0d25f07aa21ce9b85372a3792bf7969d13",
              "status": "affected",
              "version": "29121bd0b00ebb9524971a583fea4a2f7afe8041",
              "versionType": "git"
            },
            {
              "lessThan": "0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9",
              "status": "affected",
              "version": "29121bd0b00ebb9524971a583fea4a2f7afe8041",
              "versionType": "git"
            },
            {
              "lessThan": "9a02f3275acc628c0d956be771405ced79ac36df",
              "status": "affected",
              "version": "29121bd0b00ebb9524971a583fea4a2f7afe8041",
              "versionType": "git"
            },
            {
              "lessThan": "85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0",
              "status": "affected",
              "version": "29121bd0b00ebb9524971a583fea4a2f7afe8041",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.18"
            },
            {
              "lessThan": "2.6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.200",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.124",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.49",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.200",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.124",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.49",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.6",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm mirror log: round up region bitmap size to BITS_PER_LONG\n\nThe code in dm-log rounds up bitset_size to 32 bits. It then uses\nfind_next_zero_bit_le on the allocated region. find_next_zero_bit_le\naccesses the bitmap using unsigned long pointers. So, on 64-bit\narchitectures, it may access 4 bytes beyond the allocated size.\n\nFix this bug by rounding up bitset_size to BITS_PER_LONG.\n\nThis bug was found by running the lvm2 testsuite with kasan."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:05:14.868Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13"
        },
        {
          "url": "https://git.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36df"
        },
        {
          "url": "https://git.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0"
        }
      ],
      "title": "dm mirror log: round up region bitmap size to BITS_PER_LONG",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49710",
    "datePublished": "2025-02-26T02:24:27.532Z",
    "dateReserved": "2025-02-26T02:21:30.444Z",
    "dateUpdated": "2026-05-11T19:05:14.868Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49710",
      "date": "2026-05-27",
      "epss": "0.00018",
      "percentile": "0.04907"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49710\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:46.800\",\"lastModified\":\"2025-10-24T15:53:28.930\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndm mirror log: round up region bitmap size to BITS_PER_LONG\\n\\nThe code in dm-log rounds up bitset_size to 32 bits. It then uses\\nfind_next_zero_bit_le on the allocated region. find_next_zero_bit_le\\naccesses the bitmap using unsigned long pointers. So, on 64-bit\\narchitectures, it may access 4 bytes beyond the allocated size.\\n\\nFix this bug by rounding up bitset_size to BITS_PER_LONG.\\n\\nThis bug was found by running the lvm2 testsuite with kasan.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dm mirror log: redondear el tama\u00f1o del mapa de bits de la regi\u00f3n a BITS_PER_LONG El c\u00f3digo en dm-log redondea bitset_size a 32 bits. Luego usa find_next_zero_bit_le en la regi\u00f3n asignada. find_next_zero_bit_le accede al mapa de bits usando punteros largos sin signo. Por lo tanto, en arquitecturas de 64 bits, puede acceder a 4 bytes m\u00e1s all\u00e1 del tama\u00f1o asignado. Corrija este error redondeando bitset_size a BITS_PER_LONG. Este error se encontr\u00f3 ejecutando el conjunto de pruebas lvm2 con kasan.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.18\",\"versionEndExcluding\":\"5.4.200\",\"matchCriteriaId\":\"3FF2D138-D7F2-4E14-83FF-9E5E8C35F093\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.124\",\"matchCriteriaId\":\"6442F2CD-FF1C-4574-9948-138835E635D7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.49\",\"matchCriteriaId\":\"697D250E-E0A4-41BE-BB54-96385E129206\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.18.6\",\"matchCriteriaId\":\"CDD33A19-B51E-4090-A47B-073098916815\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"A8C30C2D-F82D-4D37-AB48-D76ABFBD5377\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF8547FC-C849-4F1B-804B-A93AE2F04A92\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36df\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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

Author Source Type Date Other

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.