GSD-2021-1001189 powerpc/bpf: Fix detecting BPF atomic instructions

Not scored Published

A bug in the Linux kernel's BPF verifier for PowerPC failed to correctly detect atomic instructions, potentially leading to undefined behavior.

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

What is GSD-2021-1001189?

GSD-2021-1001189 is a vulnerability in Kernel, published on 3 Aug 2021.

Official description

powerpc/bpf: Fix detecting BPF atomic instructions

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 v5.13.4 by commit 0d435b6d94b05dcfd836d758a63145aa566618e2, it was introduced in version v5.12 by commit 91c960b0056672e74627776655c926388350fa30. For more details please see the references link.

Which versions are affected by GSD-2021-1001189?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001189?

No fix has been published for GSD-2021-1001189 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1001189 being exploited?

There is no known exploitation of GSD-2021-1001189 in the wild and no public exploit code.

Sources

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