CVE-2026-46125

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: remove station if connection prep fails

If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes.

This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux81151ce462e533551f3284bfdb8e0f461c9220e6 < 18fed0a209500bfea5c4c08609ec93855e4e500baffected
LinuxLinux81151ce462e533551f3284bfdb8e0f461c9220e6 < fe75fa1ac9a92990f7fc3d34b17808fd933071b2affected
LinuxLinux81151ce462e533551f3284bfdb8e0f461c9220e6 < afcbaed89cdc1a001b43270cbf5394bb4804270aaffected
LinuxLinux81151ce462e533551f3284bfdb8e0f461c9220e6 < 9e28654f79f443bca9b29ff3ae7cf18abfba58a0affected
LinuxLinux81151ce462e533551f3284bfdb8e0f461c9220e6 < 1c2b72ea89882aeb948340498391e69c58d466f1affected
LinuxLinux81151ce462e533551f3284bfdb8e0f461c9220e6 < 283fc9e44ff5b5ac967439b4951b80bd4299f4e4affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.88 <= 6.12.*unaffected
LinuxLinux6.18.30 <= 6.18.*unaffected
LinuxLinux7.0.7 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

ADP Enrichment

kernel: wifi: mac80211: remove station if connection prep fails

Additional References

References