GSD-2023-1000285 mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths

Not scored Published

Missing MMU notifier invocations in Linux kernel shmem/file collapse paths may cause memory consistency issues, requiring a kernel patch.

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

What is GSD-2023-1000285?

GSD-2023-1000285 is a vulnerability in Kernel, published on 17 Jan 2023.

Official description

mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths

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 v5.4.227 by commit 5ffc2a75534d9d74d49760f983f8eb675fa63d69, it was introduced in version v4.8 by commit f3f0e1d2150b2b99da2cbdfaad000089efe9bf30. For more details please see the references link.

Which versions are affected by GSD-2023-1000285?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1000285?

No fix has been published for GSD-2023-1000285 yet. Limit exposure of the affected software until one is available.

Is GSD-2023-1000285 being exploited?

There is no known exploitation of GSD-2023-1000285 in the wild and no public exploit code.

Sources

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