HarborGuard / CVE
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HIGHCVE-2026-31779Published Modified CNA Linux

CVE-2026-31779: wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()

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.

Metrics

CVSS v3.1
8.1
Severity
HIGH
Fixed in
0
Affected Products
2

Fix available

06.1.1686.6.1346.12.816.18.226.19.127.0744fabc338e87b95c4d1ff7c95bc8c0f834c6d99ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2dd90880eb5ec5442b37eb2b95688f4a63f4883e3e67d8c626ace80b0fa2b48c8ec0a46b508c93442f6abac936a0dfd31d6c3e49205ec0ee75a8f887fffbed27ba15ef80d1c622eeedbfef03e501ae134
Affected packages
  • Linux / Linux
    < f6abac936a0dfd31d6c3e49205ec0ee75a8f887f (from 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c) · < ffbed27ba15ef80d1c622eeedbfef03e501ae134 (from 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c) · < e67d8c626ace80b0fa2b48c8ec0a46b508c93442 (from 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c) · < dd90880eb5ec5442b37eb2b95688f4a63f4883e3 (from 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c) · < ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2 (from 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c) · < 744fabc338e87b95c4d1ff7c95bc8c0f834c6d99 (from 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c)
  • Linux / Linux
    6.1
    Fixed in 0, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References