wifi: mac80211: keep fallback association elements alive
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: keep fallback association elements alive Associating to a non-transmitted MBSSID profile reads freed memory while determining the operating channel and applying HT capabilities. When an association response omits WMM, HT, or VHT information, ieee80211_assoc_config_link() parses the cached BSS IEs and copies the missing element pointers out of that fallback parse. For a non-transmitted MBSSID profile those pointers refer to merged-profile storage owned by the parse object, and the fallback block frees that object at its end. The copied pointers are used afterwards to determine the operating channel, configure bandwidth, and apply HT capabilities. Keep the fallback parse result alive until association setup finishes. [reorder variable declaration]
CVE-2026-98704
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-2026-98704
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": "5023b14cf4df4d22e1a80738167f3438c9e62e5f",
"lessThan": "de77b0f68142147e74fac1c497dbe1f93daeeed9",
"versionType": "git"
},
{
"status": "affected",
"version": "5023b14cf4df4d22e1a80738167f3438c9e62e5f",
"lessThan": "1d9644753d46c86b4e5c05bd6d9d35339ea27331",
"versionType": "git"
},
{
"status": "affected",
"version": "5023b14cf4df4d22e1a80738167f3438c9e62e5f",
"lessThan": "d0183cd1f6a2dba9e63be20af2f65093c9c8d121",
"versionType": "git"
},
{
"status": "affected",
"version": "5023b14cf4df4d22e1a80738167f3438c9e62e5f",
"lessThan": "0878594c5806dd29fa5e16cc026ce19158afdad2",
"versionType": "git"
},
{
"status": "affected",
"version": "5023b14cf4df4d22e1a80738167f3438c9e62e5f",
"lessThan": "a10a2f80476d166fd81c361ec0319493671b694e",
"versionType": "git"
}
],
"programFiles": [
"net/mac80211/mlme.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/mac80211/mlme.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98704
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48917 · Revision 1
- Added to Heist Feed
- Publisher date