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.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
17 Nov 2025, 12:54
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Debian Debian debian Linux Linux |
|
| References | () https://git.kernel.org/stable/c/07476e0d932afc53c05468076393ac35d0b4999e - Patch | |
| References | () https://git.kernel.org/stable/c/2480326eba8ae9ccc5e4c3c2dc8d407db68e3c52 - Patch | |
| References | () https://git.kernel.org/stable/c/250f25367b58d8c65a1b060a2dda037eea09a672 - Patch | |
| References | () https://git.kernel.org/stable/c/5085e02362b9948f82fceca979b8f8e12acb1cc5 - Patch | |
| References | () https://git.kernel.org/stable/c/c322789613407647a05ff5c451a7bf545fb34e73 - Patch | |
| References | () https://git.kernel.org/stable/c/f1e9087abaeedec9bf2894a282ee4f0d8383f299 - Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html - Mailing List | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CWE | CWE-416 | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
03 Nov 2025, 20:18
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Information
Published : 2025-05-09 07:16
Updated : 2025-11-17 12:54
NVD link : CVE-2025-37849
Mitre link : CVE-2025-37849
CVE.ORG link : CVE-2025-37849
JSON object : View
Products Affected
linux
- linux_kernel
debian
- debian_linux
CWE
CWE-416
Use After Free