wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif
Priority LOW 38Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.00254 16th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.191, 6.6.158, 6.12.111 +2Red Hat: 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.158, 6.12.111, 6.18.53, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93790
- 2026-10-03 Alias added: GHSA-rh32-7cxx-qxq4
- 2026-10-03 Fix available: Linux/Linux@35f991d685feafd27255bd33272512c434e52527, Linux/[email protected] · CNA
- 2026-10-03 1 new reference · CNA
- 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@ed9869e64dd7a397a320ae7a37f1e4a36f866f74 · CNA
- 2026-10-30 1 new reference · CNA
- 2026-10-30 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/ed9869e64dd7a397a320ae7a37f1e4a36f866f74
- https://git.kernel.org/stable/c/35f991d685feafd27255bd33272512c434e52527
- https://git.kernel.org/stable/c/c48b741277b01b2c3b4ecccedc72fc575b71dc04
- https://git.kernel.org/stable/c/e8ac5e91b1296f65c3d119fac3fa917ff458f811
- https://git.kernel.org/stable/c/94d3982806c7f194b23484befde12934dda23064
More Linux vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-93790 · CVE Program
- CVE-2026-93790 · NVD
- FIRST EPSS
- GHSA-rh32-7cxx-qxq4 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93790 · Red Hat security data · CC BY 4.0
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