CVE-2026-98339

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Source
https://cve.org/CVERecord?id=CVE-2026-98339
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98339.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98339
Downstream
Published
2026-10-06T08:46:29Z
Modified
2026-10-08T02:52:58Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
wifi: cfg80211: don't filter by BSS type when removing stale entries
Details

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

wifi: cfg80211: don't filter by BSS type when removing stale entries

When an assoc AP switches to a channel that already has a BSS entry, cfg80211_update_assoc_bss_entry() removes that entry before rehashing the real one, since the two would otherwise collide in the BSS rbtree.

The lookup for that entry also required it to match the connection's BSS type, so an entry advertising e.g. the IBSS capability bit was left in place, and the following cfg80211_rehash_bss() then ran into it:

WARN_ON(!cmp)

Changing the type shouldn't really happen, but can be triggered by a rogue AP/device, so drop the check and remove any entries matching the comparison.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98339.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
0afd425b1b64251f19b5d8d8b49bf56fefbc643f
Fixed
6ef87a853327434ae1cd9c5a2c27a557fb4047fc
Fixed
1380ee3a202dbb9f8e8b3c3b87eb410450d57799
Fixed
fb445ec7480da5d2b82bf681e3b4313603722729
Fixed
65fdb973bd905bc3f5cb045a04c1828f2d2a7e24
Fixed
64e23a36d8f04811372365b44cfca325f8e0f4bb
Fixed
6d2fd26185678038ef2ea11dd4d2e6eccbf2dd25
Fixed
0aa44982125c86b47961be5ac1c82eddab8080f3
Fixed
b377e1000d963e7182a987082b4b06580bd7ac84

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98339.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.4.0
Fixed
5.10.271
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.222
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.189
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.158
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.112
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.54
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98339.json"