CVE-2025-37849

HIGH EPSS 14.2%
Published May 9, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published May 9, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvm_arch_vcpu_create() fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak the corresponding memory when the vCPU is destroyed but it can also lead to use-after-free if the redistributor device handling tries to walk into the vCPU. Add the missing cleanup to kvm_arch_vcpu_create(), ensuring that the vGIC vCPU structures are destroyed on error.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
14.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel* <6.1.135
linuxlinux_kernel*≥6.2  –  <6.6.88
linuxlinux_kernel*≥6.7  –  <6.12.24
linuxlinux_kernel*≥6.13  –  <6.13.12
linuxlinux_kernel*≥6.14  –  <6.14.3
debiandebian_linux11.0any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/07476e0d932afc53c05468076393ac35d0b4999e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2480326eba8ae9ccc5e4c3c2dc8d407db68e3c52
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/250f25367b58d8c65a1b060a2dda037eea09a672
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5085e02362b9948f82fceca979b8f8e12acb1cc5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c322789613407647a05ff5c451a7bf545fb34e73
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f1e9087abaeedec9bf2894a282ee4f0d8383f299
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
    Mailing List

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/07476e0d932afc53c05468076393ac35d0b4999e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2480326eba8ae9ccc5e4c3c2dc8d407db68e3c52
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/250f25367b58d8c65a1b060a2dda037eea09a672
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5085e02362b9948f82fceca979b8f8e12acb1cc5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c322789613407647a05ff5c451a7bf545fb34e73
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f1e9087abaeedec9bf2894a282ee4f0d8383f299
    Patch