wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV
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.
CVE-2026-90366
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90366
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "98686cd21624c75a043e96812beadddf4f6f48e5",
"lessThan": "1d348f96623ec20d700af7d4dfc00a74da6238ac",
"versionType": "git"
},
{
"status": "affected",
"version": "98686cd21624c75a043e96812beadddf4f6f48e5",
"lessThan": "bc1d694a1ffe0062c3adf0db1d64ad54454398ec",
"versionType": "git"
},
{
"status": "affected",
"version": "98686cd21624c75a043e96812beadddf4f6f48e5",
"lessThan": "45d8896e4cffffb2c6554ccbec6efe7a0d53166f",
"versionType": "git"
},
{
"status": "affected",
"version": "98686cd21624c75a043e96812beadddf4f6f48e5",
"lessThan": "1a51aff0e048dc5b8252d65808b79939c942d6ec",
"versionType": "git"
},
{
"status": "affected",
"version": "98686cd21624c75a043e96812beadddf4f6f48e5",
"lessThan": "50c66bab321140c49aa2ed779a3ec9d2f085b458",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7996/mcu.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7996/mcu.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90366
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36696 · Revision 1
- Added to Heist Feed
- Publisher date