Vulnerability-Lookup

GHSA-WH2C-4C72-P6W9

Vulnerability from github – Published: 2025-10-21 12:31 – Updated: 2026-01-19 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

mmc: core: use sysfs_emit() instead of sprintf()

sprintf() (still used in the MMC core for the sysfs output) is vulnerable to the buffer overflow. Use the new-fangled sysfs_emit() instead.

Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49267"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:03Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: core: use sysfs_emit() instead of sprintf()\n\nsprintf() (still used in the MMC core for the sysfs output) is vulnerable\nto the buffer overflow.  Use the new-fangled sysfs_emit() instead.\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool.",
  "id": "GHSA-wh2c-4c72-p6w9",
  "modified": "2026-01-19T15:30:32Z",
  "published": "2025-10-21T12:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49267"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f55ac683b2722714016f16daae9cab3f7f7b9f9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/659ca56b5415c7a1d05e185c36fad80ba165d063"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4ab65738ab3e21fe519ee46b2051222bc8e32ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5d8a5fe77ce933f53eb8f2e22bb7a1a2019ea11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49267 (GCVE-0-2022-49267)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2026-01-19 12:17

Title

mmc: core: use sysfs_emit() instead of sprintf()

Summary

In the Linux kernel, the following vulnerability has been resolved: mmc: core: use sysfs_emit() instead of sprintf() sprintf() (still used in the MMC core for the sysfs output) is vulnerable to the buffer overflow. Use the new-fangled sysfs_emit() instead. Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/0f55ac683b2722714…
	https://git.kernel.org/stable/c/659ca56b5415c7a1d…
	https://git.kernel.org/stable/c/c4ab65738ab3e21fe…
	https://git.kernel.org/stable/c/f5d8a5fe77ce933f5…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0f55ac683b2722714016f16daae9cab3f7f7b9f9 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 659ca56b5415c7a1d05e185c36fad80ba165d063 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c4ab65738ab3e21fe519ee46b2051222bc8e32ef (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f5d8a5fe77ce933f53eb8f2e22bb7a1a2019ea11 (git)

Linux

Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/core/bus.c",
            "drivers/mmc/core/bus.h",
            "drivers/mmc/core/mmc.c",
            "drivers/mmc/core/sd.c",
            "drivers/mmc/core/sdio.c",
            "drivers/mmc/core/sdio_bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0f55ac683b2722714016f16daae9cab3f7f7b9f9",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "659ca56b5415c7a1d05e185c36fad80ba165d063",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "c4ab65738ab3e21fe519ee46b2051222bc8e32ef",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "f5d8a5fe77ce933f53eb8f2e22bb7a1a2019ea11",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/core/bus.c",
            "drivers/mmc/core/bus.h",
            "drivers/mmc/core/mmc.c",
            "drivers/mmc/core/sd.c",
            "drivers/mmc/core/sdio.c",
            "drivers/mmc/core/sdio_bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.198",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.19",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.2",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: core: use sysfs_emit() instead of sprintf()\n\nsprintf() (still used in the MMC core for the sysfs output) is vulnerable\nto the buffer overflow.  Use the new-fangled sysfs_emit() instead.\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-19T12:17:38.477Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0f55ac683b2722714016f16daae9cab3f7f7b9f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/659ca56b5415c7a1d05e185c36fad80ba165d063"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4ab65738ab3e21fe519ee46b2051222bc8e32ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/f5d8a5fe77ce933f53eb8f2e22bb7a1a2019ea11"
        }
      ],
      "title": "mmc: core: use sysfs_emit() instead of sprintf()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49267",
    "datePublished": "2025-02-26T01:56:16.211Z",
    "dateReserved": "2025-02-26T01:49:39.297Z",
    "dateUpdated": "2026-01-19T12:17:38.477Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-WH2C-4C72-P6W9

CVE-2022-49267 (GCVE-0-2022-49267)

Tags

Sightings

Nomenclature