GSD-2021-1000267 bcache: Use 64-bit arithmetic instead of 32-bit

Not scored Published

A potential integer overflow in the Linux kernel bcache subsystem was fixed by using 64-bit arithmetic, though specific security impact remains unproven.

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

What is GSD-2021-1000267?

GSD-2021-1000267 is a vulnerability in Kernel, published on 31 May 2021.

Official description

bcache: Use 64-bit arithmetic instead of 32-bit

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 4fa8634493253c3f8932410a65680f588c7b7e4a, it was introduced in version v5.12 by commit d0cf9503e908ee7b235a5efecedeb74aabc482f3. For more details please see the references link.

Which versions are affected by GSD-2021-1000267?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1000267?

No fix has been published for GSD-2021-1000267 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1000267 being exploited?

There is no known exploitation of GSD-2021-1000267 in the wild and no public exploit code.

Sources

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