GSD-2022-1004869 xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue

Not scored Published

A null pointer dereference in the Xen netback driver can cause a kernel crash, requiring a patch to the Linux kernel.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2022-1004869?

GSD-2022-1004869 is a vulnerability in Kernel, published on 31 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue

This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.289 by commit d5320c6a27aa975aff740f9cb481dcbde48f4348, it was introduced in version v4.9 by commit 98f6d57ced73b723551568262019f1d6c8771f20. For more details please see the references link.

Which versions are affected by GSD-2022-1004869?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1004869?

No fix has been published for GSD-2022-1004869 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1004869 being exploited?

There is no known exploitation of GSD-2022-1004869 in the wild and no public exploit code.

Sources

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