CVE-2026-31779 (GCVE-0-2026-31779)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-03 05:45
VLAI?
Title
wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler() The memcpy function assumes the dynamic array notif->matches is at least as large as the number of bytes to copy. Otherwise, results->matches may contain unwanted data. To guarantee safety, extend the validation in one of the checks to ensure sufficient packet length. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Severity ?
8.1 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c , < f6abac936a0dfd31d6c3e49205ec0ee75a8f887f (git)
Affected: 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c , < ffbed27ba15ef80d1c622eeedbfef03e501ae134 (git)
Affected: 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c , < e67d8c626ace80b0fa2b48c8ec0a46b508c93442 (git)
Affected: 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c , < dd90880eb5ec5442b37eb2b95688f4a63f4883e3 (git)
Affected: 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c , < ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2 (git)
Affected: 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c , < 744fabc338e87b95c4d1ff7c95bc8c0f834c6d99 (git)
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    Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.134 , ≤ 6.6.* (semver)
Unaffected: 6.12.81 , ≤ 6.12.* (semver)
Unaffected: 6.18.22 , ≤ 6.18.* (semver)
Unaffected: 6.19.12 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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            "drivers/net/wireless/intel/iwlwifi/mvm/d3.c"
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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

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.