wifi: iwlwifi: mvm: add a check on the tid coming from the firmware
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: add a check on the tid coming from the firmware ba_notif->tid is a firmware-controlled u8 that is used directly as an array index into tid_data[] without any validation. Add a bounds check against IWL_MAX_TID_COUNT before dereferencing the array.
Why it matters now
EPSS 0.00168 6th 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-2026-93791
- 2026-10-03 Alias added: GHSA-6m6g-gjgc-588p
- 2026-10-03 Fix available: Linux/Linux@0f690fd3b5535d110898b99ae6214f29c9060941, Linux/[email protected] · CNA
- 2026-10-03 1 new reference · CNA
- 2026-10-30 Fix available: Linux/Linux@03084a2c61838ce6a12f082025cbf9ed869f0492, Linux/[email protected] · CNA
- 2026-10-30 1 new reference · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/03084a2c61838ce6a12f082025cbf9ed869f0492
- https://git.kernel.org/stable/c/0f690fd3b5535d110898b99ae6214f29c9060941
- https://git.kernel.org/stable/c/0b5325a0771674f1d65618de7db3df9d49186a12
- https://git.kernel.org/stable/c/59f64c2839022f41a7867b38f9e38c185ff39283
- https://git.kernel.org/stable/c/0e4c0d83267261cf67ec9690856edf4a56bb7dfc
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- 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-2026-93791 · CVE Program
- CVE-2026-93791 · NVD
- FIRST EPSS
- GHSA-6m6g-gjgc-588p · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93791 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences