kernel: net: fib: fib6_add: potential NULL pointer dereference

The fib6add function in net/ipv6/ip6fib.c in the Linux kernel before 3.11.5 does not properly implement error-code encoding, which allows local users to cause a denial of service NULL pointer dereference and system crash by leveraging the CAPNETADMIN capability for an IPv6 SIOCADDRT ioctl call...

security flaw

Multiple vulnerabilities in Linux kernel before 2.6.13.2 allow local users to cause a denial of service kernel OOPS from null dereference via 1 fput in a 32-bit ioctl on 64-bit x86 systems or 2 sockfdput in the 32-bit routingioctl function on 64-bit systems...