CVE-2021-47296

MEDIUM

Linux Kernel 4.18 - Use-After-Free in KVM PPC vcpu_load

Title source: llm
STIX 2.1

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.

References (5)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0022
EPSS Percentile 13.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (14)
Linux/Linux < 4.18
Linux/Linux 4.18
Linux/Linux 4.19.199 - 4.19.*
Linux/Linux 5.10.54 - 5.10.*
Linux/Linux 5.13.6 - 5.13.*
Linux/Linux 5.14
Linux/Linux 5.4.136 - 5.4.*
Linux/Linux b3cebfe8c1cadf1817939dcc3688a2504a69c662 - 9bafc34dc4ad0cef18727c557f21ed3c3304df50
Linux/Linux b3cebfe8c1cadf1817939dcc3688a2504a69c662 - a4a488915feaad38345cc01b80d52e8200ff5209
Linux/Linux b3cebfe8c1cadf1817939dcc3688a2504a69c662 - bc4188a2f56e821ea057aca6bf444e138d06c252
... and 4 more
Published May 21, 2024
Tracked Since Feb 18, 2026