CVE-2026-53182 (GCVE-0-2026-53182)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-28 06:39
VLAI
Title
wifi: nl80211: reject oversized EMA RNR lists
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject oversized EMA RNR lists nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211_rnr_elems::cnt field and uses that count to size the flexible array allocation. Reject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches 255, before incrementing it again. This keeps the parser aligned with the data structure it fills and matches the existing bound check used by nl80211_parse_mbssid_elems().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 56189d7bc30531def6b999f27940ee43c6ff2569 , < fc0ec2fc02dfe52c5821f36fbccf6a45df43f508 (git)
Affected: dbbb27e183b1568d5a907ace1cd144b0709ea52a , < 688fcac7054abc680c0eef753f2bb772cfaf8cf7 (git)
Affected: dbbb27e183b1568d5a907ace1cd144b0709ea52a , < 30c3fa80f423613efdda3deca4af52ff7d20e4e2 (git)
Affected: dbbb27e183b1568d5a907ace1cd144b0709ea52a , < 265c07c09c837621730d35f02975207a1224bf05 (git)
Affected: dbbb27e183b1568d5a907ace1cd144b0709ea52a , < ecbf3c45add30a0857414e156bdb9c79906f0ff6 (git)
Affected: dbbb27e183b1568d5a907ace1cd144b0709ea52a , < 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1 (git)
Affected: 6.1.160 , < 6.1.176 (semver)
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Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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    "dateReserved": "2026-06-09T07:44:35.390Z",
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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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