UBUNTU-CVE-2025-37849

Advisory lineage Upstream: 1 Downstream: 40
Upstream
CVE-2025-37849
Published: 09 May 2025, 07:16
Last modified:17 Jul 2026, 23:35

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 May 2025, 07:16
Published
Vulnerability first disclosed
17 Jul 2026, 23:35
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • ubuntu•linux

    all | all | all | < 4.15.0-248.260 | < 5.4.0-228.248 | < 5.15.0-174.184 | < 6.8.0-100.100

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    all | all | all | < 4.15.0-1190.203 | < 5.4.0-1157.167 | < 5.15.0-1104.111 | < 6.8.0-1046.49

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    all | < 5.15.0-1104.111~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    all | < 5.4.0-1157.167~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-6.8

    all | < 6.8.0-1046.49~22.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2128.134 | all | < 5.4.0-1157.167+fips1 | < 5.15.0-1104.111+fips1 | < 6.8.0-1046.49+fips1

  • ubuntu•linux-aws-hwe

    all | < 4.15.0-1190.203~16.04.1

  • ubuntu•linux-azure

    all | all | all | < 4.15.0-1199.214~14.04.1 | < 4.15.0-1200.215~16.04.1 | all | < 5.4.0-1161.167 | < 5.15.0-1109.118 | < 6.8.0-1046.52

  • ubuntu•linux-azure-4.15

    all | < 4.15.0-1199.214

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    all | < 5.15.0-1110.119~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    all | < 5.4.0-1161.167~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.11

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-6.8

    all | < 6.8.0-1051.57~22.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | all | all | all

  • ubuntu•linux-azure-fde-5.15

    all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.17

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fde-6.8

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2109.115 | all | < 5.4.0-1161.167+fips1 | < 5.15.0-1109.118+fips1 | < 6.8.0-1046.52+fips1

  • ubuntu•linux-azure-nvidia

    all

  • ubuntu•linux-bluefield

    all | all | < 5.4.0-1116.123 | < 5.15.0-1087.89 | all

  • ubuntu•linux-fips

    < 4.15.0-1145.157 | all | < 5.4.0-1131.141 | < 5.15.0-174.184+fips1 | < 6.8.0-100.100+fips1

  • ubuntu•linux-gcp

    all | all | all | < 4.15.0-1183.200~16.04.2 | all | < 5.4.0-1160.169 | < 5.15.0-1104.113 | < 6.8.0-1047.50

  • ubuntu•linux-gcp-4.15

    all | < 4.15.0-1183.200

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    all | < 5.15.0-1104.113~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    all | < 5.4.0-1160.169~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.11

    all

Showing first 50 affected entries in server-rendered view.

References (48)