wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-93790
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 17:17:11 UTC
Updated2026-10-03 11:17:48 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif mvmsta->tid_data was indexed by the TFD loop counter 'i' instead of the actual TID value 'tid'. This writes lq_color into a random tid_data slot unrelated to the BA entry. Since multi-TID blockack is not really in use, 'i' was always 0 and no harm was done. Add a out-of-bound check before accessing the array.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.002410000 probability, percentile 0.139170000 (date 2026-10-05)

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

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 41fd2fec56db2564f02532ed7244e1f69193b4ad 35f991d685feafd27255bd33272512c434e52527 git Not specified
CNA Linux Linux affected 41fd2fec56db2564f02532ed7244e1f69193b4ad c48b741277b01b2c3b4ecccedc72fc575b71dc04 git Not specified
CNA Linux Linux affected 41fd2fec56db2564f02532ed7244e1f69193b4ad e8ac5e91b1296f65c3d119fac3fa917ff458f811 git Not specified
CNA Linux Linux affected 41fd2fec56db2564f02532ed7244e1f69193b4ad 94d3982806c7f194b23484befde12934dda23064 git Not specified
CNA Linux Linux affected 4.15 Not specified
CNA Linux Linux unaffected 4.15 semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c48b741277b01b2c3b4ecccedc72fc575b71dc04 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/94d3982806c7f194b23484befde12934dda23064 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/35f991d685feafd27255bd33272512c434e52527 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e8ac5e91b1296f65c3d119fac3fa917ff458f811 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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