- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% 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: net: bridge: use option bits for CFM/MRP frame handlers CFM and MRP register a global br_frame_type whose hlist_node is linked into the per-bridge frame_type_list when the first MEP/MRP instance is created. Enabling the protocol on multiple bridges therefore inserts the same node into multiple lists. Unregistering it on one bridge then corrupts list state belonging to another. These handlers can only be installed once per bridge, and they are uncommon. Track their per-bridge enable state with net_bridge option bits, which already live on the Rx hot cache line, and dispatch the matching handler directly from the receive path. Check both bits together first as an unlikely case. Remove the generic frame_type_list and br_frame_type helpers, which have had no other users since CFM and MRP were added. That shrinks struct net_bridge by 8 bytes and drops the list walk from the fast path. When neither protocol is compiled in, BR_CFM_MRP_OPTS is 0 and the compiler prunes the branch.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 35 days later
· 35 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)
- 0.21% · top 88% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 90c628dd47ff4178f645b34938470bf43d02d123 – < 935eb5581583b008d0c8e928c03021b45967439b
- affected 90c628dd47ff4178f645b34938470bf43d02d123 – < 158b6563c6c9dc0f368a2169911fb4f8a5ea0592
- affected 90c628dd47ff4178f645b34938470bf43d02d123 – < 260f99b355a44f6ce67971ebc9223b22c8f93957
- affected 90c628dd47ff4178f645b34938470bf43d02d123 – < be5ead6552418d70df3a76b962ccd6ed78a31fb5
- affected 90c628dd47ff4178f645b34938470bf43d02d123 – < 994fd705ca498223d188024cde833739a9dddbd2
- affected 90c628dd47ff4178f645b34938470bf43d02d123 – < 42e033c8f30fd2923ccac3373ae70797e521dae1
- affected 90c628dd47ff4178f645b34938470bf43d02d123 – < 7a49e6b16f36b8e085521699adbca3e321b6dd0c
- affected 5.11
- unaffected < 5.11
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/935eb5581583b008d0c8e928c03021b45967439b (opens in a new tab)
- https://git.kernel.org/stable/c/158b6563c6c9dc0f368a2169911fb4f8a5ea0592 (opens in a new tab)
- https://git.kernel.org/stable/c/260f99b355a44f6ce67971ebc9223b22c8f93957 (opens in a new tab)
- https://git.kernel.org/stable/c/be5ead6552418d70df3a76b962ccd6ed78a31fb5 (opens in a new tab)
- https://git.kernel.org/stable/c/994fd705ca498223d188024cde833739a9dddbd2 (opens in a new tab)
- https://git.kernel.org/stable/c/42e033c8f30fd2923ccac3373ae70797e521dae1 (opens in a new tab)
- https://git.kernel.org/stable/c/7a49e6b16f36b8e085521699adbca3e321b6dd0c (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-2026-86746 (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-2026-97615)Record last updated .