GSD-2021-1001091 mm/slub: actually fix freelist pointer vs redzoning

Not scored Published

A memory corruption issue in the Linux kernel SLUB allocator could potentially allow attackers to execute code or escalate privileges.

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

What is GSD-2021-1001091?

GSD-2021-1001091 is a memory corruption vulnerability in Kernel, published on 30 Jun 2021.

Official description

mm/slub: actually fix freelist pointer vs redzoning

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 v5.12.13 by commit ce6e8bee7a3883e8008b30f5887dbb426aac6a35. For more details please see the references link.

Which versions are affected by GSD-2021-1001091?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001091?

No fix has been published for GSD-2021-1001091 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is GSD-2021-1001091 being exploited?

There is no known exploitation of GSD-2021-1001091 in the wild and no public exploit code.

Sources

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