CVE-2021-47079 platform/x86: ideapad-laptop: fix a NULL pointer dereference

Medium 5.5 Published Updated

A NULL pointer dereference in the ideapad-laptop driver can cause a system crash, requiring a kernel patch to resolve.

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

What is CVE-2021-47079?

CVE-2021-47079 is a medium-severity vulnerability in Linux kernel, published on 1 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

platform/x86: ideapad-laptop: fix a NULL pointer dereference

The third parameter of dytc_cql_command should not be NULL since it will be dereferenced immediately.

Weakness: CWE-476

Which versions are affected by CVE-2021-47079?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2021-47079?

No fix has been published for CVE-2021-47079 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-47079 being exploited?

There is no known exploitation of CVE-2021-47079 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as GHSA-rfc9-vxpm-6mm9, UBUNTU-CVE-2021-47079.

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