GSD-2022-1001548 bpf: Fix a btf decl_tag bug when tagging a function

Not scored Published

A bug in the Linux Kernel BPF subsystem when tagging functions with BTF decl_tag, potentially leading to undefined behavior or crashes.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2022-1001548?

GSD-2022-1001548 is a vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

bpf: Fix a btf decl_tag bug when tagging a function

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 v5.16.19 by commit a3bcd2110c087bc62e90fddd4a93237b049d6e68, it was introduced in version v5.16 by commit b5ea834dde6b6e7f75e51d5f66dac8cd7c97b5ef. For more details please see the references link.

Which versions are affected by GSD-2022-1001548?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1001548?

No fix has been published for GSD-2022-1001548 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1001548 being exploited?

There is no known exploitation of GSD-2022-1001548 in the wild and no public exploit code.

Sources

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