Red Hat has issued an update for the kernel. This fixes a vulnerability, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerability is caused due to the "rio_ioctl()" function within the dl2k driver (drivers/net/ethernet/dlink/dl2k.c) not restricting the SIOCSMIIREG IOCTL, which can be exploited to cause certain network adapters to malfunction by sending specially crafted IOCTLs.
Solution: Updated packages are available via Red Hat Network.
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Subject: Red Hat update for kernel
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