GSD-2021-1001740 s390/qeth: fix deadlock during failing recovery

Not scored Published

A deadlock in the s390/qeth network driver during recovery can cause a system hang, requiring a kernel patch to resolve.

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

What is GSD-2021-1001740?

GSD-2021-1001740 is a denial of service vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

s390/qeth: fix deadlock during failing recovery

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 v5.14.10 by commit 0bfe741741327822d1482c7edef0184636d08b40, it was introduced in version v5.11 by commit b41b554c1ee75070a14c02a88496b1f231c7eacc. For more details please see the references link.

Which versions are affected by GSD-2021-1001740?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001740?

No fix has been published for GSD-2021-1001740 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is GSD-2021-1001740 being exploited?

There is no known exploitation of GSD-2021-1001740 in the wild and no public exploit code.

Sources

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