CVE-2026-98338
- Source
- https://cve.org/CVERecord?id=CVE-2026-98338
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98338.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98338
- Downstream
- Published
- 2026-10-06T08:46:29Z
- Modified
- 2026-10-08T02:52:57Z
- Summary
- wifi: cfg80211: ibss: ref BSS entry for joined event
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: ibss: ref BSS entry for joined event
When the IBSS is joined, we only record the BSSID/channel in the event and look up the BSS entry when processing it. However, that's racy, e.g. a new scan with NL80211_SCAN_FLAG_FLUSH can remove it, causing a warning in the event work:
!bss WARNING: net/wireless/ibss.c:37 at __cfg80211_ibss_joined+0x3d3/0x440 Workqueue: cfg80211 cfg80211_event_work cfg80211_process_wdev_events+0x39f/0x5b0 net/wireless/util.c:1144 cfg80211_process_rdev_events+0xa1/0x110 net/wireless/util.c:1179 cfg80211_event_work+0x2f/0x40 net/wireless/core.c:393
Do the lookup early (the driver is expected to only join an IBSS that has a BSS entry) and keep a reference to it.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98338.json" }- References
-
- https://git.kernel.org/stable/c/708f9d43d6a2eb9c6b83fe62af628de9dffd9314
- https://git.kernel.org/stable/c/b0e3f019e461ac42e45aa3ec1216cefaca2f4a8b
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98338.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98338
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git