Important: Red Hat Security Advisory: kernel security and bug fix update

Updated kernel packages that fix one security issue and three bugs are now available for Red Hat Enterprise Linux 6.4 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System CVSS base score, which gives a...

Linux netback crash trying to disable due to malformed packet

ISSUE DESCRIPTION When Linux's netback sees a malformed packet, it tries to disable the interface which serves the misbehaving frontend. This involves taking a mutex, which might sleep. But in recent versions of Linux the guest transmit path is handled by NAPI in softirq context, where sleeping i...

RHEL 6 : kernel (RHSA-2011:1106)

Updated kernel packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.0 Extended Update Support. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring...

kernel: gro: reset dev and skb_iff on skb reuse

The napireuseskb function in net/core/dev.c in the Generic Receive Offload GRO implementation in the Linux kernel before 2.6.38 does not reset the values of certain structure members, which might allow remote attackers to cause a denial of service NULL pointer dereference via a malformed VLAN fra...

kernel: net: Fix memory leak/corruption on VLAN GRO_DROP

The Generic Receive Offload GRO implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux 5 and 2.6.32 on Red Hat Enterprise Linux 6, as used in Red Hat Enterprise Virtualization RHEV Hypervisor and other products, allows remote attackers to cause a denial of service via crafted VLAN...

kernel: net: Fix memory leak/corruption on VLAN GRO_DROP

The Generic Receive Offload GRO implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux 5 and 2.6.32 on Red Hat Enterprise Linux 6, as used in Red Hat Enterprise Virtualization RHEV Hypervisor and other products, allows remote attackers to cause a denial of service via crafted VLAN...

kernel: net: Fix memory leak/corruption on VLAN GRO_DROP

The Generic Receive Offload GRO implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux 5 and 2.6.32 on Red Hat Enterprise Linux 6, as used in Red Hat Enterprise Virtualization RHEV Hypervisor and other products, allows remote attackers to cause a denial of service via crafted VLAN...

PT-2011-1063 · Red Hat +2 · Red Hat +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions 2.6.18 through 2.6.32 Red Hat Enterprise Linux 5 and 6 affected versions not specified Description: The issue allows remote attackers to cause a denial of service via crafted VLAN packets that are processed by the napi...

PT-2011-1062 · Suse +2 · Ext4Dev-Kmp-Trace +4

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 2.6.38 Description: The issue is related to the Generic Receive Offload GRO implementation in the Linux kernel. A problem in the napi reuse skb function in net/core/dev.c does not reset the values of certain...