kernel: Possible heap buffer overflow in brcmf_cfg80211_mgmt_tx()

Kernel memory corruption due to a buffer overflow was found in brcmfcfg80211mgmttx function in Linux kernels from v3.9-rc1 to v4.13-rc1. The vulnerability can be triggered by sending a crafted NL80211CMDFRAME packet via netlink. This flaw is unlikely to be triggered remotely as certain userspace...