github - ghsa-49w9-5v8p-jcmw

GHSA-49W9-5V8P-JCMW

Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2025-03-05 15:30

Details

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

spi: sn-f-ospi: Fix division by zero

When there is no dummy cycle in the spi-nor commands, both dummy bus cycle bytes and width are zero. Because of the cpu's warning when divided by zero, the warning should be avoided. Return just zero to avoid such calculations.

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21793"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-369"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:20Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: sn-f-ospi: Fix division by zero\n\nWhen there is no dummy cycle in the spi-nor commands, both dummy bus cycle\nbytes and width are zero. Because of the cpu\u0027s warning when divided by\nzero, the warning should be avoided. Return just zero to avoid such\ncalculations.",
  "id": "GHSA-49w9-5v8p-jcmw",
  "modified": "2025-03-05T15:30:50Z",
  "published": "2025-02-27T03:34:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21793"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3588b1c0fde2f58d166e3f94a5a58d64b893526c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4df6f005bef04a3dd16c028124a1b5684db3922b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7434135553bc03809a55803ee6a8dcaae6240d55"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/966328191b4c389c0f2159fa242915f51cbc1679"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-21793 (GCVE-0-2025-21793)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2025-10-01 19:36

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: sn-f-ospi: Fix division by zero When there is no dummy cycle in the spi-nor commands, both dummy bus cycle bytes and width are zero. Because of the cpu's warning when divided by zero, the warning should be avoided. Return just zero to avoid such calculations.

Severity ?

5.5 (Medium)


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

CWE

CWE-369 - Divide By Zero

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/966328191b4c389c0…
	https://git.kernel.org/stable/c/4df6f005bef04a3dd…
	https://git.kernel.org/stable/c/7434135553bc03809…
	https://git.kernel.org/stable/c/3588b1c0fde2f58d1…

Impacted products

Vendor

Product

Version

Linux

Affected: 1b74dd64c8612619e399e5a31da79a3636914495 , < 966328191b4c389c0f2159fa242915f51cbc1679 (git)
Affected: 1b74dd64c8612619e399e5a31da79a3636914495 , < 4df6f005bef04a3dd16c028124a1b5684db3922b (git)
Affected: 1b74dd64c8612619e399e5a31da79a3636914495 , < 7434135553bc03809a55803ee6a8dcaae6240d55 (git)
Affected: 1b74dd64c8612619e399e5a31da79a3636914495 , < 3588b1c0fde2f58d166e3f94a5a58d64b893526c (git)

Linux

Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.79 , ≤ 6.6.* (semver)
Unaffected: 6.12.16 , ≤ 6.12.* (semver)
Unaffected: 6.13.4 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21793",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:29:03.317315Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-369",
                "description": "CWE-369 Divide By Zero",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:36:39.316Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-sn-f-ospi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "966328191b4c389c0f2159fa242915f51cbc1679",
              "status": "affected",
              "version": "1b74dd64c8612619e399e5a31da79a3636914495",
              "versionType": "git"
            },
            {
              "lessThan": "4df6f005bef04a3dd16c028124a1b5684db3922b",
              "status": "affected",
              "version": "1b74dd64c8612619e399e5a31da79a3636914495",
              "versionType": "git"
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              "lessThan": "7434135553bc03809a55803ee6a8dcaae6240d55",
              "status": "affected",
              "version": "1b74dd64c8612619e399e5a31da79a3636914495",
              "versionType": "git"
            },
            {
              "lessThan": "3588b1c0fde2f58d166e3f94a5a58d64b893526c",
              "status": "affected",
              "version": "1b74dd64c8612619e399e5a31da79a3636914495",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.4",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.79",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.16",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.4",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: sn-f-ospi: Fix division by zero\n\nWhen there is no dummy cycle in the spi-nor commands, both dummy bus cycle\nbytes and width are zero. Because of the cpu\u0027s warning when divided by\nzero, the warning should be avoided. Return just zero to avoid such\ncalculations."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:21:21.201Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/966328191b4c389c0f2159fa242915f51cbc1679"
        },
        {
          "url": "https://git.kernel.org/stable/c/4df6f005bef04a3dd16c028124a1b5684db3922b"
        },
        {
          "url": "https://git.kernel.org/stable/c/7434135553bc03809a55803ee6a8dcaae6240d55"
        },
        {
          "url": "https://git.kernel.org/stable/c/3588b1c0fde2f58d166e3f94a5a58d64b893526c"
        }
      ],
      "title": "spi: sn-f-ospi: Fix division by zero",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21793",
    "datePublished": "2025-02-27T02:18:30.281Z",
    "dateReserved": "2024-12-29T08:45:45.767Z",
    "dateUpdated": "2025-10-01T19:36:39.316Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-49W9-5V8P-JCMW

CVE-2025-21793 (GCVE-0-2025-21793)

Tags

Sightings

Nomenclature