CVE-2022-49740 wifi: brcmfmac: Check the count value of channel spec to prevent out-of-bounds reads

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Check the count value of channel spec to prevent out-of-bounds reads This patch fixes slab-out-of-bounds reads in brcmfmac that occur in brcmfconstructchaninfo and brcmfenablebw402g when the count value of channel...

CVE-2022-49740

CVE-2022-49740 concerns the Linux kernel brcmfmac driver. The vulnerability arises when the device-provided channel spec count exceeds the allocated list length in brcmf_construct_chaninfo() and brcmf_enable_bw40_2g(), causing slab-out-of-bounds reads. The patch adds bounds checks so these functi...