wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- 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: fix off-by-one in TXF key sanitiser iwl_mvm_frob_txf_key_iter() tracks the last matched byte position in loop variable 'i'. When a full key match is found (match == keylen), 'i' points at the last byte of the matched key. The memset start offset should therefore be i + 1 - keylen, not i - keylen; the current code zeroes one byte before the match and leaves the final key byte un-sanitised.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
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-2026-93064
- 2026-10-03 Alias added: GHSA-hjvf-78mr-j897
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-20 Affected versions changed · Red Hat
- 2026-10-20 CVSS score added · Red Hat
- 2026-11-01 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/1af000d75b1c96f7cbdf23f14d0ee1c51b12f8e6
- https://git.kernel.org/stable/c/5bcc933c6d47d795dab27458b9001c2d97130fd3
- https://git.kernel.org/stable/c/4c582ed61325135f841ca93667d7551a8e31e58d
- https://git.kernel.org/stable/c/c9d8641aea01c3b2516483e128e1f557cfbcf44a
- https://git.kernel.org/stable/c/2a77cb320e3998afa5e1ed0e95908b226aae9ed6
- https://git.kernel.org/stable/c/f6a6c01cbc046f68e6916a7e047a1bc881c8c9ab
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Sources
- CVE-2026-93064 · CVE Program
- CVE-2026-93064 · NVD
- FIRST EPSS
- GHSA-hjvf-78mr-j897 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93064 · Red Hat security data · CC BY 4.0
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