Vulnerability-Lookup

GHSA-JRM7-H4FX-VPXV

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31

Details

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

bpf: Add missing access_ok call to copy_user_syms

As reported by sashiko we use __get_user without prior access_ok call on the user space pointer. Adding the missing call for the whole pointer array.

Plus removing the err check in the error path, because it's not needed and also we can return -ENOMEM directly from the first kvmalloc_array fail path.

[1] https://lore.kernel.org/bpf/20260611115503.AC16D1F00893@smtp.kernel.org/

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80865"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T17:16:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add missing access_ok call to copy_user_syms\n\nAs reported by sashiko we use __get_user without prior access_ok call on the\nuser space pointer. Adding the missing call for the whole pointer array.\n\nPlus removing the err check in the error path, because it\u0027s not needed and\nalso we can return -ENOMEM directly from the first kvmalloc_array fail path.\n\n[1] https://lore.kernel.org/bpf/20260611115503.AC16D1F00893@smtp.kernel.org/",
  "id": "GHSA-jrm7-h4fx-vpxv",
  "modified": "2026-09-04T18:31:31Z",
  "published": "2026-09-04T18:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80865"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b6252afcd1965f77c6a6f8a802a2e1381822b98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/128391b57e0977c35243672a6f970073651f3831"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28ce7bcf8a29aa395b60764df4c97be745de89d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b719cef5ac30ab83ce5693c5faf10e4944874af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a67f7f9647cb243b3be32163e88e5bc76e3d51e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5dc200c3a3f217de072af269dd90adddf90e48d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80865 (GCVE-0-2026-80865)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:48 – Updated: 2026-09-04 16:48

Title

bpf: Add missing access_ok call to copy_user_syms

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Add missing access_ok call to copy_user_syms As reported by sashiko we use __get_user without prior access_ok call on the user space pointer. Adding the missing call for the whole pointer array. Plus removing the err check in the error path, because it's not needed and also we can return -ENOMEM directly from the first kvmalloc_array fail path. [1] https://lore.kernel.org/bpf/20260611115503.AC16D1F00893@smtp.kernel.org/

Severity

No CVSS data available.

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/a67f7f9647cb243b3…
https://git.kernel.org/stable/c/8b719cef5ac30ab83…
https://git.kernel.org/stable/c/128391b57e0977c35…
https://git.kernel.org/stable/c/0b6252afcd1965f77…
https://git.kernel.org/stable/c/28ce7bcf8a29aa395…
https://git.kernel.org/stable/c/d5dc200c3a3f217de…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec , < a67f7f9647cb243b3be32163e88e5bc76e3d51e9 (git) Affected: 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec , < 8b719cef5ac30ab83ce5693c5faf10e4944874af (git) Affected: 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec , < 128391b57e0977c35243672a6f970073651f3831 (git) Affected: 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec , < 0b6252afcd1965f77c6a6f8a802a2e1381822b98 (git) Affected: 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec , < 28ce7bcf8a29aa395b60764df4c97be745de89d0 (git) Affected: 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec , < d5dc200c3a3f217de072af269dd90adddf90e48d (git)
Linux	Linux	Affected: 5.19 Unaffected: 0 , < 5.19 (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (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.

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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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