GSD-2021-1000248 RDMA/rtrs-clt: destroy sysfs after removing session from active list

Not scored Published

A use-after-free vulnerability in the Linux Kernel RDMA client allows potential denial of service, requiring kernel updates.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Not stated
Victim action needed
Not stated
Fix
None listed

What is GSD-2021-1000248?

GSD-2021-1000248 is an use after free vulnerability in Kernel, published on 31 May 2021.

Official description

RDMA/rtrs-clt: destroy sysfs after removing session from active list

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 v5.12.4 by commit d3cca8067d43dfee4a3535c645b55f618708dccb, it was introduced in version v5.8 by commit 6a98d71daea186247005099758af549e6afdd244. For more details please see the references link.

Which versions are affected by GSD-2021-1000248?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1000248?

No fix has been published for GSD-2021-1000248 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is GSD-2021-1000248 being exploited?

There is no known exploitation of GSD-2021-1000248 in the wild and no public exploit code.

Sources

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