CVE-2025-21828

Summary

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

wifi: mac80211: don't flush non-uploaded STAs

If STA state is pre-moved to AUTHORIZED (such as in IBSS scenarios) and insertion fails, the station is freed. In this case, the driver never knew about the station, so trying to flush it is unexpected and may crash.

Check if the sta was uploaded to the driver before and fix this.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd00800a289c9349bb659a698cbd7bc04521dc927 < cf21ef3d430847ba864bbc9b2774fffcc03ce321affected
LinuxLinuxd00800a289c9349bb659a698cbd7bc04521dc927 < cd10b7fcb95a6a86c67adc54304c59a578ab16afaffected
LinuxLinuxd00800a289c9349bb659a698cbd7bc04521dc927 < 9efb5531271fa7ebae993b2a33a705d9947c7ce6affected
LinuxLinuxd00800a289c9349bb659a698cbd7bc04521dc927 < aa3ce3f8fafa0b8fb062f28024855ea8cb3f3450affected
LinuxLinux6.4affected
LinuxLinux0 < 6.4unaffected
LinuxLinux6.6.76 <= 6.6.*unaffected
LinuxLinux6.12.13 <= 6.12.*unaffected
LinuxLinux6.13.2 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

References