Vulnerability-Lookup

GHSA-V4PC-PF34-4H9H

Vulnerability from github – Published: 2026-10-18 18:32 – Updated: 2026-10-30 15:33

Details

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

wifi: mac80211: release mesh path quota on failed additions

Repeated failed or duplicate mesh path additions can exhaust MESH_MAX_MPATHS while the path table holds fewer paths, which stops new paths to reachable destinations from being created.

mesh_path_add() reserves a slot before allocating and inserting a path. If allocation fails, the function returns without releasing the slot. If the rhashtable insertion reports an error or an existing destination, the function discards its candidate but retains the reservation. No new path is installed in any of these cases.

Release the reservation whenever the candidate is not installed.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98701"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-18T16:17:23Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: release mesh path quota on failed additions\n\nRepeated failed or duplicate mesh path additions can exhaust\nMESH_MAX_MPATHS while the path table holds fewer paths, which stops new\npaths to reachable destinations from being created.\n\nmesh_path_add() reserves a slot before allocating and inserting a path.\nIf allocation fails, the function returns without releasing the slot. If\nthe rhashtable insertion reports an error or an existing destination, the\nfunction discards its candidate but retains the reservation. No new path\nis installed in any of these cases.\n\nRelease the reservation whenever the candidate is not installed.",
  "id": "GHSA-v4pc-pf34-4h9h",
  "modified": "2026-10-30T15:33:57Z",
  "published": "2026-10-18T18:32:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98701"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/019c0a91e99f0eb6c331ca63f4fa361e9bfcb089"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56691ed9ef792f180e008a43294a4dc059fbeca2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/57bfaa8b2853425ab1b83114d823a62fe63f859f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7325a44474f20c1393a1c114c6811abce6ddfaf4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c715919369a6bae12f03debfcf0716f5d8db1c1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a59eca4557c7462aad1b160011013290a92de97d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a613c891906b558c10a4fa98ca29747b98e857cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5b08afe4d020acb1e6ea1021ce6fb63dedd1f46"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-98701 (GCVE-0-2026-98701)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:46 – Updated: 2026-10-30 12:38

Title

wifi: mac80211: release mesh path quota on failed additions

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: release mesh path quota on failed additions Repeated failed or duplicate mesh path additions can exhaust MESH_MAX_MPATHS while the path table holds fewer paths, which stops new paths to reachable destinations from being created. mesh_path_add() reserves a slot before allocating and inserting a path. If allocation fails, the function returns without releasing the slot. If the rhashtable insertion reports an error or an existing destination, the function discards its candidate but retains the reservation. No new path is installed in any of these cases. Release the reservation whenever the candidate is not installed.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7018 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/9c715919369a6bae1…
https://git.kernel.org/stable/c/019c0a91e99f0eb6c…
https://git.kernel.org/stable/c/b5b08afe4d020acb1…
https://git.kernel.org/stable/c/57bfaa8b2853425ab…
https://git.kernel.org/stable/c/56691ed9ef792f180…
https://git.kernel.org/stable/c/a613c891906b558c1…
https://git.kernel.org/stable/c/a59eca4557c7462aa…
https://git.kernel.org/stable/c/7325a44474f20c139…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < 9c715919369a6bae12f03debfcf0716f5d8db1c1 (git) Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < 019c0a91e99f0eb6c331ca63f4fa361e9bfcb089 (git) Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < b5b08afe4d020acb1e6ea1021ce6fb63dedd1f46 (git) Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < 57bfaa8b2853425ab1b83114d823a62fe63f859f (git) Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < 56691ed9ef792f180e008a43294a4dc059fbeca2 (git) Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < a613c891906b558c10a4fa98ca29747b98e857cb (git) Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < a59eca4557c7462aad1b160011013290a92de97d (git) Affected: ae76eef027f75fadd8a8eda55ee07707f077aacb , < 7325a44474f20c1393a1c114c6811abce6ddfaf4 (git)
Linux	Linux	Affected: 3.10 Unaffected: 0 , < 3.10 (semver) Unaffected: 5.10.273 , ≤ 5.10.* (semver) Unaffected: 5.15.224 , ≤ 5.15.* (semver) Unaffected: 6.1.191 , ≤ 6.1.* (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.12.113 , ≤ 6.12.* (semver) Unaffected: 6.18.56 , ≤ 6.18.* (semver) Unaffected: 7.2.10 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix)

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{
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          "programFiles": [
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              "status": "unaffected",
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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.

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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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