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Medium ELSA-2025-17397 2 CVEs

Moderate: kernel security update (Oracle Linux 8)

Published Oct 7, 2025 · Updated Oct 7, 2025

Summary

[4.18.0-553.78.1_10.OL8]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.3
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652]
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772]

[4.18.0-553.78.1_10]
- mm/migrate: set swap entry values of THP tail pages properly. (Luiz Capitulino) [RHEL-101302]
- smb: client: fix use-after-free in cifs_oplock_break (Paulo Alcantara) [RHEL-111190] {CVE-2025-38527}
- NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CKI Backport Bot) [RHEL-113603] {CVE-2025-39730}

Fixed packages 20

ReleasePackageFixed in
Oracle Linux · 8 bpftool 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-abi-stablelists 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-core 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-cross-headers 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-debug 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-debug-core 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-debug-devel 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-debug-modules 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-debug-modules-extra 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-devel 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-doc 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-headers 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-modules 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-modules-extra 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-tools 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-tools-libs 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 kernel-tools-libs-devel 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 perf 0:4.18.0-553.78.1.el8_10
Oracle Linux · 8 python3-perf 0:4.18.0-553.78.1.el8_10

Vulnerabilities 2

  • Critical 9.8

    smb: client: fix use-after-free in cifs_oplock_break

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifs_oplock_break A race condition can occur in cifs_oplock_break() leading to a use-after-free of the cinode structure when unmounting: cifs_oplock_break()…

  • Unscored —

    NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()

    In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.