CVE-2026-93790

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

HIGH
8.8
CVSS Score
Published: September 24, 2026 at 04:02 PM UTC
Updated: October 3, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%

Description

In 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.15 ≤ v < 6.12.1114.15 ≤ v < 6.18.534.15 ≤ v < 6.6.1584.15 ≤ v < 7.24.1541fd2fec56db2564f02532ed7244e1f69193b4ad
Vendor states this is fixed in 35f991d685feafd27255bd33272512c434e52527 (fixed)
Vendor states this is fixed in 94d3982806c7f194b23484befde12934dda23064 (fixed)
Vendor states this is fixed in c48b741277b01b2c3b4ecccedc72fc575b71dc04 (fixed)
Vendor states this is fixed in e8ac5e91b1296f65c3d119fac3fa917ff458f811 (fixed)
Vendor states this is fixed in 4.15 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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