CVE-2026-98327wifi: mac80211: mesh: reset the CSA state when leaving
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mesh: reset the CSA state when leaving ifmsh->csa is allocated in ieee80211_mesh_csa_beacon() and only freed in ieee80211_mesh_finish_csa(), i.e. when the channel switch completes. Leaving the mesh while a switch is still pending therefore leaks it. Additionally, ifmsh->csa_role and ifmsh->chsw_ttl have their state leak in this case, so things can get mixed up in addition to the memory leak. Refactor the reset and call it in ieee80211_stop_mesh() to fix it all.
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 13 days later
· 13 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected b8456a14e9d2770846fcf74de18ff95b676149a3 – < aba8dfb45864441199748c33ce3c1c8ca121c8bd
- affected b8456a14e9d2770846fcf74de18ff95b676149a3 – < bd3b21145ae2e781daac1bbd19216a63ab4e0cbd
- affected b8456a14e9d2770846fcf74de18ff95b676149a3 – < ba5bf83a81e8832cb84bb3a2da67512f81f57a02
- affected b8456a14e9d2770846fcf74de18ff95b676149a3 – < 860134b3af77970e006feab7e5decb8c84771c7f
- affected 3.13
- unaffected < 3.13
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.54 – ≤ 6.18.*
- unaffected 7.2.8 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/aba8dfb45864441199748c33ce3c1c8ca121c8bd (opens in a new tab)
- https://git.kernel.org/stable/c/bd3b21145ae2e781daac1bbd19216a63ab4e0cbd (opens in a new tab)
- https://git.kernel.org/stable/c/ba5bf83a81e8832cb84bb3a2da67512f81f57a02 (opens in a new tab)
- https://git.kernel.org/stable/c/860134b3af77970e006feab7e5decb8c84771c7f (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-93312 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98327)Record last updated .