Vulnerability-Lookup

GHSA-346M-4QGC-HQV8

Vulnerability from github – Published: 2025-07-25 15:30 – Updated: 2026-01-11 18:30

Details

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

genirq/irq_sim: Initialize work context pointers properly

Initialize ops member's pointers properly by using kzalloc() instead of kmalloc() when allocating the simulation work context. Otherwise the pointers contain random content leading to invalid dereferencing.

Severity ?

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-38408"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T14:15:32Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/irq_sim: Initialize work context pointers properly\n\nInitialize `ops` member\u0027s pointers properly by using kzalloc() instead of\nkmalloc() when allocating the simulation work context. Otherwise the\npointers contain random content leading to invalid dereferencing.",
  "id": "GHSA-346m-4qgc-hqv8",
  "modified": "2026-01-11T18:30:27Z",
  "published": "2025-07-25T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38408"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19bd7597858dd15802c1d99fcc38e528f469080a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f73d1def72532bac4d55ea8838f457a6bed955c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec3656a8cb428d763def32bc2fa695f94be23629"
    }
  ],
  "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-2025-38408 (GCVE-0-2025-38408)

Vulnerability from cvelistv5 – Published: 2025-07-25 13:20 – Updated: 2026-01-11 16:29

Title

genirq/irq_sim: Initialize work context pointers properly

Summary

In the Linux kernel, the following vulnerability has been resolved: genirq/irq_sim: Initialize work context pointers properly Initialize `ops` member's pointers properly by using kzalloc() instead of kmalloc() when allocating the simulation work context. Otherwise the pointers contain random content leading to invalid dereferencing.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/ec3656a8cb428d763…
	https://git.kernel.org/stable/c/19bd7597858dd1580…
	https://git.kernel.org/stable/c/7f73d1def72532bac…
	https://git.kernel.org/stable/c/8a2277a3c9e4cc539…

Impacted products

Vendor

Product

Version

Linux

Affected: 337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 , < ec3656a8cb428d763def32bc2fa695f94be23629 (git)
Affected: 337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 , < 19bd7597858dd15802c1d99fcc38e528f469080a (git)
Affected: 337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 , < 7f73d1def72532bac4d55ea8838f457a6bed955c (git)
Affected: 337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1 , < 8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819 (git)

Linux

Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.37 , ≤ 6.12.* (semver)
Unaffected: 6.15.6 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/irq/irq_sim.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ec3656a8cb428d763def32bc2fa695f94be23629",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "19bd7597858dd15802c1d99fcc38e528f469080a",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "7f73d1def72532bac4d55ea8838f457a6bed955c",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            },
            {
              "lessThan": "8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819",
              "status": "affected",
              "version": "337cbeb2c13eb4cab84f576fd402d7ae4ed31ae1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/irq/irq_sim.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "lessThan": "5.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.120",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.37",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.6",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/irq_sim: Initialize work context pointers properly\n\nInitialize `ops` member\u0027s pointers properly by using kzalloc() instead of\nkmalloc() when allocating the simulation work context. Otherwise the\npointers contain random content leading to invalid dereferencing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-11T16:29:21.496Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ec3656a8cb428d763def32bc2fa695f94be23629"
        },
        {
          "url": "https://git.kernel.org/stable/c/19bd7597858dd15802c1d99fcc38e528f469080a"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f73d1def72532bac4d55ea8838f457a6bed955c"
        },
        {
          "url": "https://git.kernel.org/stable/c/8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819"
        }
      ],
      "title": "genirq/irq_sim: Initialize work context pointers properly",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38408",
    "datePublished": "2025-07-25T13:20:13.253Z",
    "dateReserved": "2025-04-16T04:51:24.013Z",
    "dateUpdated": "2026-01-11T16:29:21.496Z",
    "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-346M-4QGC-HQV8

CVE-2025-38408 (GCVE-0-2025-38408)

Tags

Sightings

Nomenclature