🛡️ UBUNTU-CVE-2025-38396
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass Export anon_inode_make_secure_inode() to allow KVM guest_memfd to create anonymous inodes with proper security context. This replaces the current pattern of calling alloc_anon_inode() followed by inode_init_security_anon() for creating security context manually. This change also fixes a security regression in secretmem where the S_PRIVATE flag was not cleared after alloc_anon_inode(), causing LSM/SELinux checks to be bypassed for secretmem file descriptors. As guest_memfd currently resides in the KVM module, we need to export this symbol for use outside the core kernel. In the future, guest_memfd might be moved to core-mm, at which point the symbols no longer would have to be exported. When/if that happens is still unclear.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-07-25
Updated 2026-06-15
Modified 2026-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 6.8.0-100.100
linux-allwinner-5.19
linux-aws 6.8.0-1046.49
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.19
linux-aws-5.3
linux-aws-5.8
linux-aws-6.14 6.14.0-1015.15~24.04.1
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 6.8.0-1046.49~22.04.1
linux-aws-fips 6.8.0-1046.49+fips1
linux-azure 6.8.0-1046.52
linux-azure-5.11
linux-azure-5.13
linux-azure-5.19
linux-azure-5.3
linux-azure-5.8
linux-azure-6.11
linux-azure-6.14 6.14.0-1014.14~24.04.1
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 6.8.0-1051.57~22.04.1
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.17
linux-azure-fde-6.2
linux-azure-fde-6.8
linux-azure-fips 6.8.0-1046.52+fips1
linux-azure-nvidia
linux-azure-nvidia-6.14 6.14.0-1007.7
linux-bluefield
linux-fips 6.8.0-100.100+fips1
linux-gcp 6.8.0-1047.50
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.8
linux-gcp-6.11
linux-gcp-6.14 6.14.0-1018.19~24.04.1
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 6.8.0-1047.50~22.04.2
linux-gcp-fips 6.8.0-1047.50+fips1
linux-gke 6.8.0-1043.48
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 6.8.0-1030.33
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.19
linux-hwe-5.8
linux-hwe-6.11
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 6.8.0-100.100~22.04.1
linux-hwe-edge
linux-ibm 6.8.0-1044.44
linux-ibm-6.8 6.8.0-1044.44~22.04.1
linux-intel
linux-intel-5.13
linux-intel-iot-realtime
linux-lowlatency 6.8.0-100.100.1
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 6.8.0-100.100.1~22.04.1
linux-nvidia 6.8.0-1046.49
linux-nvidia-6.11
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 6.8.0-1046.49~22.04.1
linux-nvidia-lowlatency 6.8.0-1046.49.1
linux-nvidia-tegra 6.8.0-1020.20
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.11
linux-oem-6.14 6.14.0-1014.14
linux-oem-6.5
linux-oem-6.8
linux-oracle 6.8.0-1043.44
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.3
linux-oracle-5.8
linux-oracle-6.14 6.14.0-1015.15~24.04.1
linux-oracle-6.5
linux-oracle-6.8 6.8.0-1043.44~22.04.1
linux-raspi 6.8.0-1047.51
linux-raspi-realtime 6.8.0-2037.38
linux-raspi2
linux-realtime 6.8.1-1041.42
linux-realtime-6.14 6.14.0-1014.14~24.04.1
linux-realtime-6.8 6.8.1-1041.42~22.04.1
linux-riscv
linux-riscv-5.11
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.14 6.14.0-34.34.1~24.04.1
linux-riscv-6.5
linux-riscv-6.8 6.8.0-100.100~22.04.1
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx 6.8.0-1023.24

References

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