GSD-2022-1003631 ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

Not scored Published

A null pointer dereference in the ALSA PCM subsystem can cause a kernel crash, requiring a patch to the Linux Kernel.

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

What is GSD-2022-1003631?

GSD-2022-1003631 is a vulnerability in Kernel, published on 28 Jun 2022.

Official description

ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

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 v5.10.121 by commit f2c68c52898f623fe84518da4606538d193b0cca, it was introduced in version v5.6 by commit d4cfb30fce03093ad944e0b44bd8f40bdad5330e. For more details please see the references link.

Which versions are affected by GSD-2022-1003631?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1003631?

No fix has been published for GSD-2022-1003631 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1003631 being exploited?

There is no known exploitation of GSD-2022-1003631 in the wild and no public exploit code.

Sources

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