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.
CVSS
No CVSS.
References
Configurations
No configuration.
History
25 Jul 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-07-25 13:15
Updated : 2025-07-25 15:29
NVD link : CVE-2025-38396
Mitre link : CVE-2025-38396
CVE.ORG link : CVE-2025-38396
JSON object : View
Products Affected
No product.
CWE
No CWE.