Vulnerability-Lookup

GHSA-4MX2-9F8M-CPMR

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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

mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()

The function mtd_parser_tplink_safeloader_parse() allocates buf via mtd_parser_tplink_safeloader_read_table(). If the allocation for parts[idx].name fails inside the loop, the code jumps to the err_free label without freeing buf, leading to a memory leak.

Fix this by freeing the temporary buffer buf in the err_free label.

Compile tested only. Issue found using a prototype static analysis tool and code review.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45921"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()\n\nThe function mtd_parser_tplink_safeloader_parse() allocates buf via\nmtd_parser_tplink_safeloader_read_table(). If the allocation for\nparts[idx].name fails inside the loop, the code jumps to the err_free\nlabel without freeing buf, leading to a memory leak.\n\nFix this by freeing the temporary buffer buf in the err_free label.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.",
  "id": "GHSA-4mx2-9f8m-cpmr",
  "modified": "2026-05-27T15:33:17Z",
  "published": "2026-05-27T15:33:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45921"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f5e62ea5c43146eacdc6861cb1022ffae1b79bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/971e9c53aed82f17a9c6a65daa4e21cc15eba5b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e97f5fac8ce9a6b9ec724c97d86b0985e915fdca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec121ad626c319085f6d40a52cd04e99b4554926"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45921 (GCVE-0-2026-45921)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-05-27 12:17

Title

mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()

Summary

In the Linux kernel, the following vulnerability has been resolved: mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse() The function mtd_parser_tplink_safeloader_parse() allocates buf via mtd_parser_tplink_safeloader_read_table(). If the allocation for parts[idx].name fails inside the loop, the code jumps to the err_free label without freeing buf, leading to a memory leak. Fix this by freeing the temporary buffer buf in the err_free label. Compile tested only. Issue found using a prototype static analysis tool and code review.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/0f5e62ea5c43146ea…
https://git.kernel.org/stable/c/e97f5fac8ce9a6b9e…
https://git.kernel.org/stable/c/ec121ad626c319085…
https://git.kernel.org/stable/c/971e9c53aed82f17a…
https://git.kernel.org/stable/c/980ce2b02dd06a4fd…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 00a3588084bee6f37bb2b1d343f96900cfe049bc , < 0f5e62ea5c43146eacdc6861cb1022ffae1b79bc (git) Affected: 00a3588084bee6f37bb2b1d343f96900cfe049bc , < e97f5fac8ce9a6b9ec724c97d86b0985e915fdca (git) Affected: 00a3588084bee6f37bb2b1d343f96900cfe049bc , < ec121ad626c319085f6d40a52cd04e99b4554926 (git) Affected: 00a3588084bee6f37bb2b1d343f96900cfe049bc , < 971e9c53aed82f17a9c6a65daa4e21cc15eba5b1 (git) Affected: 00a3588084bee6f37bb2b1d343f96900cfe049bc , < 980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 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/mtd/parsers/tplink_safeloader.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
              "lessThan": "e97f5fac8ce9a6b9ec724c97d86b0985e915fdca",
              "status": "affected",
              "version": "00a3588084bee6f37bb2b1d343f96900cfe049bc",
              "versionType": "git"
            },
            {
              "lessThan": "ec121ad626c319085f6d40a52cd04e99b4554926",
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              "versionType": "git"
            },
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              "versionType": "git"
            },
            {
              "lessThan": "980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b",
              "status": "affected",
              "version": "00a3588084bee6f37bb2b1d343f96900cfe049bc",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mtd/parsers/tplink_safeloader.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "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": "6.6.128",
                  "versionStartIncluding": "6.2",
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                },
                {
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                },
                {
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              "negate": false,
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()\n\nThe function mtd_parser_tplink_safeloader_parse() allocates buf via\nmtd_parser_tplink_safeloader_read_table(). If the allocation for\nparts[idx].name fails inside the loop, the code jumps to the err_free\nlabel without freeing buf, leading to a memory leak.\n\nFix this by freeing the temporary buffer buf in the err_free label.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:17:40.032Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b"
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      ],
      "title": "mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()",
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    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45921",
    "datePublished": "2026-05-27T12:17:40.032Z",
    "dateReserved": "2026-05-13T15:03:33.085Z",
    "dateUpdated": "2026-05-27T12:17:40.032Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-4MX2-9F8M-CPMR

CVE-2026-45921 (GCVE-0-2026-45921)

Tags

Sightings

Nomenclature