CVE-2026-98311
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: virt_wifi: don't transfer operstate before register virt_wifi_newlink() calls netif_stacked_transfer_operstate() before register_netdevice(). If the lower device is dormant, that queues the new netdev on lweventlist while it is still uninitialized. If registration fails after that, for example because of an invalid name such as "bad/name", free_netdev() immediately frees the object. A later linkwatch_fire_event() then use-after-frees the list entry. Move the transfer to after netdev_upper_dev_link(), as macvlan and ipvlan already do.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/293c56a66510bb7de073a1aba388e38abddff1fb
- https://git.kernel.org/stable/c/9ce26201f6dedf3fa02b97da8c67ee6f6c5f7225
- https://git.kernel.org/stable/c/b808a9af5fd21f9c68b0d024eda7535b5dce6a4e
- https://git.kernel.org/stable/c/ca49763c42c1089d654bf11b037980a9ede3772c
- https://git.kernel.org/stable/c/e5c8d7acd31b27057ea42cd405d0b3ece097bc89
- https://git.kernel.org/stable/c/e8304e25c6dabb8accf38b807969438d0ce84fd7
- https://git.kernel.org/stable/c/ee9ea1afd6990def51d52b3a0aecd5cfcc951da0
- https://git.kernel.org/stable/c/f9526054c2b2cace5916b7225603d008834ec011
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.