wifi: cfg80211: preserve hidden-group beacon IE ownership
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: preserve hidden-group beacon IE ownership A hidden-group probe-response entry borrows its beacon IEs from the group's beacon entry. cfg80211_update_assoc_bss_entry() can pass such an entry to cfg80211_update_known_bss() when merging scan entries after a channel switch. Copying the borrowed beacon_ies into the associated entry gives the same allocation two owners. Releasing the group's beacon entry can then leave the associated entry pointing to freed IEs, which are freed again when that entry is released. Skip beacon IE replacement when the source entry belongs to a hidden group. Preserve probe-response processing, the subsequent metadata updates, and the existing rejection path for conflicting hidden beacon updates.
CVE-2026-98823
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-2026-98823
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": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
"lessThan": "5617d5328839003c91007ce906b4f100b43926e9",
"versionType": "git"
},
{
"status": "affected",
"version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
"lessThan": "49b66110a08e4f926f6393e938f226de2750a08b",
"versionType": "git"
},
{
"status": "affected",
"version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
"lessThan": "dd7973a4130b0862be38d7e08cc0e874b3d99967",
"versionType": "git"
},
{
"status": "affected",
"version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
"lessThan": "5f27581c176f84b52ec0ab9be7b500c10667ef60",
"versionType": "git"
},
{
"status": "affected",
"version": "0afd425b1b64251f19b5d8d8b49bf56fefbc643f",
"lessThan": "cc45f313d85533d647ce619326302aad6f797c14",
"versionType": "git"
}
],
"programFiles": [
"net/wireless/scan.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.4",
"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/wireless/scan.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98823
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48992 · Revision 1
- Added to Heist Feed
- Publisher date