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

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Summary

CVECVE-2026-31779
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:41 UTC
Updated2026-05-03 07:16:20 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS: 0.000240000 probability, percentile 0.068220000 (date 2026-05-02)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c f6abac936a0dfd31d6c3e49205ec0ee75a8f887f git Not specified
CNA Linux Linux affected 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c ffbed27ba15ef80d1c622eeedbfef03e501ae134 git Not specified
CNA Linux Linux affected 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c e67d8c626ace80b0fa2b48c8ec0a46b508c93442 git Not specified
CNA Linux Linux affected 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c dd90880eb5ec5442b37eb2b95688f4a63f4883e3 git Not specified
CNA Linux Linux affected 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2 git Not specified
CNA Linux Linux affected 5ac54afd4d97ad8d94fe250c83b1924eb6d2268c 744fabc338e87b95c4d1ff7c95bc8c0f834c6d99 git Not specified
CNA Linux Linux affected 6.1 Not specified
CNA Linux Linux unaffected 6.1 semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.134 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.81 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e67d8c626ace80b0fa2b48c8ec0a46b508c93442 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ffbed27ba15ef80d1c622eeedbfef03e501ae134 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/744fabc338e87b95c4d1ff7c95bc8c0f834c6d99 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dd90880eb5ec5442b37eb2b95688f4a63f4883e3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f6abac936a0dfd31d6c3e49205ec0ee75a8f887f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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