Vulnerability-Lookup

GHSA-GVFQ-9HRF-2536

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:

ext4: fix memory leak in ext4_ext_shift_extents()

In ext4_ext_shift_extents(), if the extent is NULL in the while loop, the function returns immediately without releasing the path obtained via ext4_find_extent(), leading to a memory leak.

Fix this by jumping to the out label to ensure the path is properly released.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45948"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leak in ext4_ext_shift_extents()\n\nIn ext4_ext_shift_extents(), if the extent is NULL in the while loop, the\nfunction returns immediately without releasing the path obtained via\next4_find_extent(), leading to a memory leak.\n\nFix this by jumping to the out label to ensure the path is properly\nreleased.",
  "id": "GHSA-gvfq-9hrf-2536",
  "modified": "2026-05-27T15:33:18Z",
  "published": "2026-05-27T15:33:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45948"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45948 (GCVE-0-2026-45948)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:18 – Updated: 2026-05-27 12:18

Title

ext4: fix memory leak in ext4_ext_shift_extents()

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_ext_shift_extents() In ext4_ext_shift_extents(), if the extent is NULL in the while loop, the function returns immediately without releasing the path obtained via ext4_find_extent(), leading to a memory leak. Fix this by jumping to the out label to ensure the path is properly released.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/7e807cb8603b7664f…
https://git.kernel.org/stable/c/afc5e61e1a07b2b83…
https://git.kernel.org/stable/c/1bce219ee5512cf17…
https://git.kernel.org/stable/c/4a79fde8db7eba7f1…
https://git.kernel.org/stable/c/2f4b1052246ca646b…
https://git.kernel.org/stable/c/12615ab4bfb69678e…
https://git.kernel.org/stable/c/bd7b52557e4a3ccd7…
https://git.kernel.org/stable/c/ca81109d4a8f192dc…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 7e807cb8603b7664fa630a696cd891d9a03c248d (git) Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < afc5e61e1a07b2b833bd72cbee36ecce9cd901e2 (git) Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 1bce219ee5512cf179ba40cf114945a14a16e21f (git) Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 4a79fde8db7eba7f1128d971ceba4e3c9ac84aec (git) Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 2f4b1052246ca646bb17bfe0f53df2fdf9729b58 (git) Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 12615ab4bfb69678e5d961b28bb70040299e51b1 (git) Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < bd7b52557e4a3ccd7595fdb3a585f1257de57935 (git) Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < ca81109d4a8f192dc1cbad4a1ee25246363c2833 (git)
Linux	Linux	Affected: 3.15 Unaffected: 0 , < 3.15 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (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)

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        {
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          "product": "Linux",
          "programFiles": [
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              "version": "0",
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            },
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.19.4",
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              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
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}

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-GVFQ-9HRF-2536

CVE-2026-45948 (GCVE-0-2026-45948)

Tags

Sightings

Nomenclature