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High ELSA-2026-9131 2 CVEs

Important: kernel security update (Oracle Linux 8)

Published Apr 21, 2026 · Updated Apr 21, 2026

Summary

[4.18.0-553.120.1]
- 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]

[4.18.0-553.120.1]
- gfs2: bufdata allocation race (Andreas Gruenbacher) [RHEL-160075]
- gfs2: Get rid of gfs2_log_[un]lock helpers (Andreas Gruenbacher) [RHEL-160075]
- gfs2: Avoid unnecessary transactions in evict_linked_inode (Andreas Gruenbacher) [RHEL-160075]
- KVM: x86: Fix a semi theoretical bug in kvm_arch_async_page_present_queued() (Maxim Levitsky) [RHEL-152657]
- KVM: x86: Don't clear async #PF queue when CR0.PG is disabled (e.g. on #SMI) (Maxim Levitsky) [RHEL-152657]

[4.18.0-553.119.1]
- s390/dasd: Copy detected format information to secondary device (Mete Durlu) [RHEL-161532]
- s390/dasd: Move quiesce state with pprc swap (Mete Durlu) [RHEL-161532]
- s390/dasd: Fix gendisk parent after copy pair swap (Mete Durlu) [RHEL-161532]
- redhat: kernel.spec: add missing sound/soc/sof/sof-audio.h to kernel-devel package (Jaroslav Kysela) [RHEL-152417]
- s390/virtio_ccw: Fix dma_parm pointer not set up (CKI Backport Bot) [RHEL-148307]
- dlm: fix recovery pending middle conversion (Alexander Aring) [RHEL-125538]
- dlm: check for undefined release_option values (Alexander Aring) [RHEL-136236]
- dlm: handle release_option as unsigned (Alexander Aring) [RHEL-136236]
- dlm: handle invalid lockspace member remove (Alexander Aring) [RHEL-136236]
- dlm: add new flag DLM_RELEASE_RECOVER for dlm_lockspace_release (Alexander Aring) [RHEL-136236]
- dlm: add new configfs entry release_recover for lockspace members (Alexander Aring) [RHEL-136236]
- dlm: add new RELEASE_RECOVER uevent attribute for release_lockspace (Alexander Aring) [RHEL-136236]
- dlm: use defines for force values in dlm_release_lockspace (Alexander Aring) [RHEL-136236]
- dlm: check for defined force value in dlm_lockspace_release (Alexander Aring) [RHEL-136236]
- dlm: disallow different configs nodeid storages (Alexander Aring) [RHEL-136236]
- dlm: prevent NPD when writing a positive value to event_done (Alexander Aring) [RHEL-136236] {CVE-2025-23131}
- dlm: Switch to using wait_event() (Alexander Aring) [RHEL-136236]

[4.18.0-553.118.1]
- scsi: qla2xxx: Fix improper freeing of purex item (CKI Backport Bot) [RHEL-159219] {CVE-2025-68741}
- ALSA: aloop: Fix racy access at PCM trigger (Jaroslav Kysela) [RHEL-150125] {CVE-2026-23191}
- ALSA: aloop: Introduce a function to get if access is interleaved mode (CKI Backport Bot) [RHEL-150125] {CVE-2026-23191}

Fixed packages 20

ReleasePackageFixed in
Oracle Linux · 8 bpftool 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-abi-stablelists 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-core 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-cross-headers 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-debug 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-debug-core 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-debug-devel 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-debug-modules 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-debug-modules-extra 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-devel 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-doc 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-headers 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-modules 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-modules-extra 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-tools 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-tools-libs 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 kernel-tools-libs-devel 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 perf 0:4.18.0-553.120.1.el8_10
Oracle Linux · 8 python3-perf 0:4.18.0-553.120.1.el8_10

Vulnerabilities 2

  • Critical 9.8

    scsi: qla2xxx: Fix improper freeing of purex item

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix improper freeing of purex item In qla2xxx_process_purls_iocb(), an item is allocated via qla27xx_copy_multiple_pkt(), which internally calls qla24xx_alloc_purex_item(). The…

  • High 7.8

    ALSA: aloop: Fix racy access at PCM trigger

    In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix racy access at PCM trigger The PCM trigger callback of aloop driver tries to check the PCM state and stop the stream of the tied substream in the corresponding cable. Since b…