CVEvulnerability

CVE-2025-37849

7.8 HIGH Published 2025-05-09 Modified 2026-07-30 Official page ↗
Status
Modified
Published
2025-05-09
Last modified
2026-07-30
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
8.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

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.

Affected configurations

• linux linux kernel (< 6.1.135) • linux linux kernel (>= 6.2 < 6.6.88) • linux linux kernel (>= 6.7 < 6.12.24) • linux linux kernel (>= 6.13 < 6.13.12) • linux linux kernel (>= 6.14 < 6.14.3) • debian debian linux 11.0

Related

Weakness · CWE (1)

References