Linux Kernel igb Driver Invalid Memory Access Vulnerability

A vulnerability in the Linux kernel's igb driver can lead to invalid memory access. This issue arises in the igb_init_module() function, where the pci_register_driver() call can fail. If this happens, the dca_notifier needs to be unregistered; otherwise, the dca_notifier may be called despite igb failing to install, resulting in the invalid memory access.

Impact

Exploitation of this vulnerability can cause invalid memory access, which may lead to memory corruption or other unintended behavior in the kernel.