Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v4.9.206 2018-05-16T08:08:41+00:00 2018-05-16T08:08:41+00:00 Eric Dumazet edumazet@google.com 2018-04-07T20:42:38+00:00 urn:sha1:a3cac7e26bbd944cc8bfc96c81d6784fbde594ec commit b1993a2de12c9e75c35729e2ffbc3a92d50c0d31 upstream. syzbot reported : BUG: KMSAN: uninit-value in rtnh_ok include/net/nexthop.h:11 [inline] BUG: KMSAN: uninit-value in fib_count_nexthops net/ipv4/fib_semantics.c:469 [inline] BUG: KMSAN: uninit-value in fib_create_info+0x554/0x8d20 net/ipv4/fib_semantics.c:1091 @remaining is an integer, coming from user space. If it is negative we want rtnh_ok() to return false. Fixes: 4e902c57417c ("[IPv4]: FIB configuration using struct fib_config") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2006-09-22T21:55:04+00:00 Thomas Graf tgraf@suug.ch 2006-08-18T01:14:52+00:00 urn:sha1:4e902c57417c4c285b98ba2722468d1c3ed83d1b Introduces struct fib_config replacing the ugly struct kern_rta prone to ordering issues. Avoids creating faked netlink messages for auto generated routes or requests via ioctl. A new interface net/nexthop.h is added to help navigate through nexthop configuration arrays. A new struct nl_info will be used to carry the necessary netlink information to be used for notifications later on. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>