Vulnerability-Lookup

GHSA-2G4H-425M-78F8

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-24 15:32

Details

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

wifi: brcmsmac: Fix dma_free_coherent() size

dma_alloc_consistent() may change the size to align it. The new size is saved in alloced.

Change the free size to match the allocation size.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31661"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:45Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmsmac: Fix dma_free_coherent() size\n\ndma_alloc_consistent() may change the size to align it. The new size is\nsaved in alloced.\n\nChange the free size to match the allocation size.",
  "id": "GHSA-2g4h-425m-78f8",
  "modified": "2026-04-24T15:32:37Z",
  "published": "2026-04-24T15:32:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31661"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01f1330d3d1bee07e0c42d40cc48b7be8b6dad84"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f87777b74bcce29b966ec42d9aa8f9edd9b1667"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12cd7632757a54ce586e36040210b1a738a0fc53"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c204a0fd079fa7a867151a47d830ad1c2db5177"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4bf41c2731a0549e21f66180ff780b1e036639ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77263f053963dea9f3962505ac0c768853d7dc59"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f449676bab54fea1440775c8c915dadb323fe015"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-31661 (GCVE-0-2026-31661)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:45 – Updated: 2026-04-24 14:45

Title

wifi: brcmsmac: Fix dma_free_coherent() size

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmsmac: Fix dma_free_coherent() size dma_alloc_consistent() may change the size to align it. The new size is saved in alloced. Change the free size to match the allocation size.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f449676bab54fea14…
	https://git.kernel.org/stable/c/3c204a0fd079fa7a8…
	https://git.kernel.org/stable/c/0f87777b74bcce29b…
	https://git.kernel.org/stable/c/4bf41c2731a0549e2…
	https://git.kernel.org/stable/c/77263f053963dea9f…
	https://git.kernel.org/stable/c/b27fa888e4a426a3b…
	https://git.kernel.org/stable/c/01f1330d3d1bee07e…
	https://git.kernel.org/stable/c/12cd7632757a54ce5…

Impacted products

Vendor

Product

Version

Linux

Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < f449676bab54fea1440775c8c915dadb323fe015 (git)
Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < 3c204a0fd079fa7a867151a47d830ad1c2db5177 (git)
Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < 0f87777b74bcce29b966ec42d9aa8f9edd9b1667 (git)
Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < 4bf41c2731a0549e21f66180ff780b1e036639ab (git)
Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < 77263f053963dea9f3962505ac0c768853d7dc59 (git)
Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa (git)
Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < 01f1330d3d1bee07e0c42d40cc48b7be8b6dad84 (git)
Affected: 5b435de0d786869c95d1962121af0d7df2542009 , < 12cd7632757a54ce586e36040210b1a738a0fc53 (git)

Linux

Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.169 , ≤ 6.1.* (semver)
Unaffected: 6.6.135 , ≤ 6.6.* (semver)
Unaffected: 6.12.82 , ≤ 6.12.* (semver)
Unaffected: 6.18.23 , ≤ 6.18.* (semver)
Unaffected: 6.19.13 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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              "versionType": "git"
            },
            {
              "lessThan": "3c204a0fd079fa7a867151a47d830ad1c2db5177",
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            },
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            },
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              "versionType": "git"
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              "versionType": "git"
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          ]
        },
        {
          "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": "3.2"
            },
            {
              "lessThan": "3.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.169",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.135",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.82",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.253",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmsmac: Fix dma_free_coherent() size\n\ndma_alloc_consistent() may change the size to align it. The new size is\nsaved in alloced.\n\nChange the free size to match the allocation size."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:45:11.917Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/f449676bab54fea1440775c8c915dadb323fe015"
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        },
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          "url": "https://git.kernel.org/stable/c/4bf41c2731a0549e21f66180ff780b1e036639ab"
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          "url": "https://git.kernel.org/stable/c/77263f053963dea9f3962505ac0c768853d7dc59"
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          "url": "https://git.kernel.org/stable/c/b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa"
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        {
          "url": "https://git.kernel.org/stable/c/01f1330d3d1bee07e0c42d40cc48b7be8b6dad84"
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        {
          "url": "https://git.kernel.org/stable/c/12cd7632757a54ce586e36040210b1a738a0fc53"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31661",
    "datePublished": "2026-04-24T14:45:11.917Z",
    "dateReserved": "2026-03-09T15:48:24.129Z",
    "dateUpdated": "2026-04-24T14:45:11.917Z",
    "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-2G4H-425M-78F8

CVE-2026-31661 (GCVE-0-2026-31661)

Tags

Sightings

Nomenclature