CVE-2021-47589

In the Linux kernel, the following vulnerability has been resolved: igbvf: fix double free in igbvfprobe In igbvfprobe, if registernetdev fails, the program will go to label errhwinit, and then to label errioremap. In freenetdev which is just below label errioremap, there is listforeachentrysafe...

CVE-2021-47589

In CVE-2021-47589, the Linux kernel igbvf driver contains a double-free / use-after-free path in igbvf_probe. If register_netdev() fails, control flows to err_hw_init then err_ioremap, and free_netdev attempts to clean dev->napi_list entries while adapter->rx_ring (which holds napi) has alr...