CVE-2021-47296 Information

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.

Reference

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