kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err calls icmpsend on a cloned skb whose cb was written by the IPv6 receive path as struct inet6skbparm. icmpsend passes IPCBskb2 to...

Linux Kernel "icmp_send()"空指针引用远程拒绝服务漏洞

BUGTRAQ ID: 47872 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel "icmpsend"在实现上存在空指针引用远程拒绝服务漏洞，远程攻击者可利用此漏洞造成受影响内核崩溃，拒绝服务合法用户，也可能执行任意代码。 在函数icmpsend net/ipv4/icmp.c中，发送到devnet函数的参数没有正确验证，可导致使内核崩溃的空指针引用。攻击者可利用此bug并造成指定目标或任何连接到本地网络上的2.6.38.x机器的DoS攻击。要造成崩溃，攻击者需要用IPv4碎片报文冲击目标。IP报文中的重要字段： Flags:...

kernel security and bug fix update

2.6.18-128.1.6.0.1.el5 - NET Add entropy support to e1000 and bnx2 John Sobecki,Guru Anbalagane orabug 6045759 - MM shrink zone patch John Sobecki,Chris Mason orabug 6086839 - NET Add xen pv/bonding netconsole support Tina yang orabug 6993043 bz 7258 - nfs convert ENETUNREACH to ENOTCONN Guru...