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Not to be fixed

LIN1019-11074 : Security Advisory - linux - CVE-2021-46907

Created: Feb 27, 2024 Updated: Mar 15, 2024

Resolved Date: Mar 15, 2024

Found In Version: 10.19.45.1

Severity: Standard

Applicable for: Wind River Linux LTS 19

Component/s: Kernel

Description

In the Linux kernel, the following vulnerability has been resolved:

KVM: VMX: Don't use vcpu->run->internal.ndata as an array index

__vmx_handle_exit() uses vcpu->run->internal.ndata as an index for
an array access.  Since vcpu->run is (can be) mapped to a user address
space with a writer permission, the 'ndata' could be updated by the
user process at anytime (the user process can set it to outside the
bounds of the array).
So, it is not safe that __vmx_handle_exit() uses the 'ndata' that way.

CREATE(Triage):(User=admin) CVE-2021-46907 (https://nvd.nist.gov/vuln/detail/CVE-2021-46907)