CVE-2026-98335
wifi: mac80211: abort chanswitch when leaving a mesh
No known exploitation. EPSS puts it in the 7th percentile. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- LinuxAffected: ≥ b8456a14e9d2770846fcf74de18ff95b676149a3, < bc544ef02327edf61c94d2b6bae9d14b217009b2Upgrade to: bc544ef02327edf61c94d2b6bae9d14b217009b2Affected: ≥ b8456a14e9d2770846fcf74de18ff95b676149a3, < 2e1d6e80148495e728a85a9250176f266312e55cUpgrade to: 2e1d6e80148495e728a85a9250176f266312e55cAffected: ≥ b8456a14e9d2770846fcf74de18ff95b676149a3, < d222fdc973bb8dbf0357772bd9042ffdc8291939Upgrade to: d222fdc973bb8dbf0357772bd9042ffdc8291939Affected: ≥ b8456a14e9d2770846fcf74de18ff95b676149a3, < ac7472a24bd433b81c06582835dd1d5547c10da9Upgrade to: ac7472a24bd433b81c06582835dd1d5547c10da9Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: abort chanswitch when leaving a mesh The code in ieee80211_stop_mesh() leaves CSA active, but leaving the mesh released the channel context, so the CSA finalize work crashes: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003 KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272 Call Trace: ieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093 ieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147 ieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542 ieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline] __ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline] ieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155 cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438 Abort the channel switch properly.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 7th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
2 events over 0 days, from the signal feeds we watch.
- Publishedrecord updated
Affected products
Sources
References in the record
- git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c
- git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9
- git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2
And 1 more reference. See all after sign-in
In the news
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