CVE-2026-90366

Source
https://cve.org/CVERecord?id=CVE-2026-90366
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90366.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90366
Downstream
Published
2026-09-17T16:09:08Z
Modified
2026-09-19T03:47:29Z
Summary
wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV

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.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90366.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
98686cd21624c75a043e96812beadddf4f6f48e5
Fixed
1d348f96623ec20d700af7d4dfc00a74da6238ac
Fixed
bc1d694a1ffe0062c3adf0db1d64ad54454398ec
Fixed
45d8896e4cffffb2c6554ccbec6efe7a0d53166f
Fixed
1a51aff0e048dc5b8252d65808b79939c942d6ec
Fixed
50c66bab321140c49aa2ed779a3ec9d2f085b458

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90366.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.157
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.110
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.52
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.6

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90366.json"