wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV
Published Sep 17, 2026
No CVSS score
EPSS 0.17%
Description
When a CSA countdown is active, mt7996_mcu_beacon_cntdwn() emits two bss_bcn_cntdwn_tlv entries (the CSA countdown and the CCA-abort BCC), but MT7996_BEACON_UPDATE_SIZE only reserved one. With MBSSID enabled and a near-maximum beacon template the extra 8 bytes could push the offload command past MT7996_MAX_BSS_OFFLOAD_SIZE and trigger skb_over_panic(). Reserve room for both countdown TLVs.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 6.2StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<6.2
- Version 6.12.110StatusunaffectedConstraints<=6.12.*
- Version 6.18.52StatusunaffectedConstraints<=6.18.*
- Version 6.6.157StatusunaffectedConstraints<=6.6.*
- Version 7.2.6StatusunaffectedConstraints<=7.2.*
- Version 7.3-rc1StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| ||||||||||||||||||||||||
| Linux | Linux | affected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Sep–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.17% (0.00168) | 5.45th | v5 (v2026.06.15) |
| Sep 18, 2026 | 0.17% (0.00168) | 6.46th | v5 (v2026.06.15) |
No CWE recorded.
References (5)
- https://git.kernel.org/stable/c/1a51aff0e048dc5b8252d65808b79939c942d6ec
- https://git.kernel.org/stable/c/1d348f96623ec20d700af7d4dfc00a74da6238ac
- https://git.kernel.org/stable/c/45d8896e4cffffb2c6554ccbec6efe7a0d53166f
- https://git.kernel.org/stable/c/50c66bab321140c49aa2ed779a3ec9d2f085b458
- https://git.kernel.org/stable/c/bc1d694a1ffe0062c3adf0db1d64ad54454398ec
Change history (0)
No recorded changes yet.