CVE-2026-98335
- Source
- https://cve.org/CVERecord?id=CVE-2026-98335
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98335.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98335
- Downstream
- Published
- 2026-10-06T08:46:26Z
- Modified
- 2026-10-08T02:52:57Z
- Summary
- wifi: mac80211: abort chanswitch when leaving a mesh
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98335.json" }- References
-
- https://git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c
- https://git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9
- https://git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2
- https://git.kernel.org/stable/c/d222fdc973bb8dbf0357772bd9042ffdc8291939
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98335.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98335
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introducedb8456a14e9d2770846fcf74de18ff95b676149a3Fixedbc544ef02327edf61c94d2b6bae9d14b217009b2Fixed2e1d6e80148495e728a85a9250176f266312e55cFixedd222fdc973bb8dbf0357772bd9042ffdc8291939Fixedac7472a24bd433b81c06582835dd1d5547c10da9