Vulnerability-Lookup

GHSA-J3XP-78W6-P4VH

Vulnerability from github – Published: 2024-08-17 09:30 – Updated: 2025-11-04 00:31

Details

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

btrfs: fix extent map use-after-free when adding pages to compressed bio

At add_ra_bio_pages() we are accessing the extent map to calculate 'add_size' after we dropped our reference on the extent map, resulting in a use-after-free. Fix this by computing 'add_size' before dropping our extent map reference.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42314"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-17T09:15:11Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix extent map use-after-free when adding pages to compressed bio\n\nAt add_ra_bio_pages() we are accessing the extent map to calculate\n\u0027add_size\u0027 after we dropped our reference on the extent map, resulting\nin a use-after-free. Fix this by computing \u0027add_size\u0027 before dropping our\nextent map reference.",
  "id": "GHSA-j3xp-78w6-p4vh",
  "modified": "2025-11-04T00:31:14Z",
  "published": "2024-08-17T09:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42314"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e7860543a94784d744c7ce34b78a2e11beefa5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7859ff398b6b656e1689daa860eb34837b4bb89"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c1cc3326e27b0bd7a2806b40bc48e49afaf951e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c205565e0f2f439f278a4a94ee97b67ef7b56ae8"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-42314 (GCVE-0-2024-42314)

Vulnerability from cvelistv5 – Published: 2024-08-17 09:09 – Updated: 2026-08-05 11:36

Title

btrfs: fix extent map use-after-free when adding pages to compressed bio

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when adding pages to compressed bio At add_ra_bio_pages() we are accessing the extent map to calculate 'add_size' after we dropped our reference on the extent map, resulting in a use-after-free. Fix this by computing 'add_size' before dropping our extent map reference.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:09 UTC

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/c1cc3326e27b0bd7a…
https://git.kernel.org/stable/c/c205565e0f2f439f2…
https://git.kernel.org/stable/c/b7859ff398b6b656e…
https://git.kernel.org/stable/c/8e7860543a94784d7…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6a4049102055250256623ab1875fabd89004bff8 , < c1cc3326e27b0bd7a2806b40bc48e49afaf951e7 (git) Affected: 6a4049102055250256623ab1875fabd89004bff8 , < c205565e0f2f439f278a4a94ee97b67ef7b56ae8 (git) Affected: 6a4049102055250256623ab1875fabd89004bff8 , < b7859ff398b6b656e1689daa860eb34837b4bb89 (git) Affected: 6a4049102055250256623ab1875fabd89004bff8 , < 8e7860543a94784d744c7ce34b78a2e11beefa5c (git)
Linux	Linux	Affected: 5.16 Unaffected: 0 , < 5.16 (semver) Unaffected: 6.1.108 , ≤ 6.1.* (semver) Unaffected: 6.6.44 , ≤ 6.6.* (semver) Unaffected: 6.10.3 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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                "id": "CVE-2024-42314",
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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.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-J3XP-78W6-P4VH

CVE-2024-42314 (GCVE-0-2024-42314)

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