An use-after-free flaw was discovered in the Linux kernels 80211 detach function in the Redpine Signals Inc driver implementation. A local attacker who is able force a module load (rsi_sdio) or usb plug/unplug could possible cause a system crash or possible memory corruption leading to privilege escalation. References: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abd39c6ded9db53aa44c2540092bdd5fb6590fa8 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.7
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1759189]
This was fixed for Fedora with the 4.16.7 stable update.
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2018-21008
External References: https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.7