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CVE-2022-50425

5.5 · MEDIUM
Published Oct 1, 2025 linux CWE-476 EPSS 0.13% (3th pctl)

Overview

CVE-2022-50425 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

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

x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly

When an extended state component is not present in fpstate, but in init

state, the function copies from init_fpstate via copy_feature().

But, dynamic states are not present in init_fpstate because of all-zeros

init states. Then retrieving them from init_fpstate will explode like this:

BUG: kernel NULL pointer dereference, address: 0000000000000000

...

RIP: 0010:memcpy_erms+0x6/0x10

? __copy_xstate_to_uabi_buf+0x381/0x870

fpu_copy_guest_fpstate_to_uabi+0x28/0x80

kvm_arch_vcpu_ioctl+0x14c/0x1460 [kvm]

? __this_cpu_preempt_check+0x13/0x20

? vmx_vcpu_put+0x2e/0x260 [kvm_intel]

kvm_vcpu_ioctl+0xea/0x6b0 [kvm]

? kvm_vcpu_ioctl+0xea/0x6b0 [kvm]

? __fget_light+0xd4/0x130

__x64_sys_ioctl+0xe3/0x910

? debug_smp_processor_id+0x17/0x20

? fpregs_assert_state_consistent+0x27/0x50

do_syscall_64+0x3f/0x90

entry_SYSCALL_64_after_hwframe+0x

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 5.16, < 6.0.7 Affected

Frequently Asked Questions

What is CVE-2022-50425?

CVE-2022-50425 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50425?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50425?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-50425?

CyberStrike's AI-powered security agents can automatically detect CVE-2022-50425 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.