CVE-2026-98339wifi: cfg80211: don't filter by BSS type when removing stale entries
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.29%, higher than 20% of scored CVEs.
Do this next
Free account, 1 product
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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.29% (percentile 20)
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before 6ef87a853327434ae1cd9c5a2c27a557fb4047fc; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before 1380ee3a202dbb9f8e8b3c3b87eb410450d57799; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before fb445ec7480da5d2b82bf681e3b4313603722729; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before 65fdb973bd905bc3f5cb045a04c1828f2d2a7e24; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before 64e23a36d8f04811372365b44cfca325f8e0f4bb; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before 6d2fd26185678038ef2ea11dd4d2e6eccbf2dd25; 0afd425b1b64251f19b5d8d8b49bf56fefbc643f builds before 0aa44982125c86b47961be5ac1c82eddab8080f3; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before b377e1000d963e7182a987082b4b06580bd7ac84 | CNA record |
References
- https://git.kernel.org/stable/c/6ef87a853327434ae1cd9c5a2c27a557fb4047fc
- https://git.kernel.org/stable/c/1380ee3a202dbb9f8e8b3c3b87eb410450d57799
- https://git.kernel.org/stable/c/fb445ec7480da5d2b82bf681e3b4313603722729
- https://git.kernel.org/stable/c/65fdb973bd905bc3f5cb045a04c1828f2d2a7e24
- https://git.kernel.org/stable/c/64e23a36d8f04811372365b44cfca325f8e0f4bb
- https://git.kernel.org/stable/c/6d2fd26185678038ef2ea11dd4d2e6eccbf2dd25
- https://git.kernel.org/stable/c/0aa44982125c86b47961be5ac1c82eddab8080f3
- https://git.kernel.org/stable/c/b377e1000d963e7182a987082b4b06580bd7ac84
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.