CVE-2021-47296

KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak vcpu_put is not called if the user copy fails. This can result in preempt notifier corruption and crashes, among other issues.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.08%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/9bafc34dc4ad0cef18727c557f21ed3c3304df50 patch
https://git.kernel.org/stable/c/f38527f1890543cdfca8dfd06f75f9887cce6151 patch
https://git.kernel.org/stable/c/e14ef1095387f764d95614d3ec9e4d07c82a3533 patch
https://git.kernel.org/stable/c/a4a488915feaad38345cc01b80d52e8200ff5209 patch
https://git.kernel.org/stable/c/bc4188a2f56e821ea057aca6bf444e138d06c252 patch

Frequently Asked Questions

What is the severity of CVE-2021-47296?
CVE-2021-47296 has been scored as a medium severity vulnerability.
How to fix CVE-2021-47296?
To fix CVE-2021-47296, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-47296 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-47296 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-47296?
CVE-2021-47296 affects Linux Linux, Linux Linux.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.