# ELSA-2026-18587: Security update for 29 packages ELSA-2026-18587, released June 29, 2026, fixes 14 CVEs across 29 products. None of them is reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/fix/linux/elsa-2026-18587 - Platform: Linux - Released: Jun 29, 2026 - Priority: High (Closes CVE-2025-39866, high severity) - CVEs: 14, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://linux.oracle.com/errata/ELSA-2026-18587.html ## Applies to | Product | Release | Fixed in | |---|---|---| | [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-abi-stablelists](https://patchblox.com/security/data/product/linux/kernel-abi-stablelists.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-core](https://patchblox.com/security/data/product/linux/kernel-core.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-cross-headers](https://patchblox.com/security/data/product/linux/kernel-cross-headers.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug](https://patchblox.com/security/data/product/linux/kernel-debug.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug-core](https://patchblox.com/security/data/product/linux/kernel-debug-core.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug-devel](https://patchblox.com/security/data/product/linux/kernel-debug-devel.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug-devel-matched](https://patchblox.com/security/data/product/linux/kernel-debug-devel-matched.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug-modules](https://patchblox.com/security/data/product/linux/kernel-debug-modules.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug-modules-core](https://patchblox.com/security/data/product/linux/kernel-debug-modules-core.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-debug-modules-extra.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-debug-uki-virt](https://patchblox.com/security/data/product/linux/kernel-debug-uki-virt.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-devel](https://patchblox.com/security/data/product/linux/kernel-devel.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-devel-matched](https://patchblox.com/security/data/product/linux/kernel-devel-matched.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-doc](https://patchblox.com/security/data/product/linux/kernel-doc.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-headers](https://patchblox.com/security/data/product/linux/kernel-headers.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-modules](https://patchblox.com/security/data/product/linux/kernel-modules.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-modules-core](https://patchblox.com/security/data/product/linux/kernel-modules-core.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-modules-extra](https://patchblox.com/security/data/product/linux/kernel-modules-extra.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-tools](https://patchblox.com/security/data/product/linux/kernel-tools.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-tools-libs](https://patchblox.com/security/data/product/linux/kernel-tools-libs.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-tools-libs-devel](https://patchblox.com/security/data/product/linux/kernel-tools-libs-devel.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-uki-virt](https://patchblox.com/security/data/product/linux/kernel-uki-virt.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [kernel-uki-virt-addons](https://patchblox.com/security/data/product/linux/kernel-uki-virt-addons.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [libperf](https://patchblox.com/security/data/product/linux/libperf.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [perf](https://patchblox.com/security/data/product/linux/perf.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [python3-perf](https://patchblox.com/security/data/product/linux/python3-perf.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [rtla](https://patchblox.com/security/data/product/linux/rtla.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | | [rv](https://patchblox.com/security/data/product/linux/rv.md) | ol 9 | 0:5.14.0-687.17.1.el9_8 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2025-39866](https://patchblox.com/security/data/cve/CVE-2025-39866.md) | High | fs: writeback: fix use-after-free in __mark_inode_dirty() | 7.8 | 0.0031 | | | [CVE-2025-38279](https://patchblox.com/security/data/cve/CVE-2025-38279.md) | High | bpf: Do not include stack ptr register in precision backtracking bookkeeping | 7.8 | 0.0024 | | | [CVE-2025-38015](https://patchblox.com/security/data/cve/CVE-2025-38015.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.0 | 0.0020 | | | [CVE-2026-23243](https://patchblox.com/security/data/cve/CVE-2026-23243.md) | High | RDMA/umad: Reject negative data_len in ib_umad_write | 7.8 | 0.0018 | | | [CVE-2026-23040](https://patchblox.com/security/data/cve/CVE-2026-23040.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: fix typo in frequency noti... | 7.6 | 0.0017 | | | [CVE-2025-38405](https://patchblox.com/security/data/cve/CVE-2025-38405.md) | Routine | kernel-debug-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 5.5 | 0.0043 | | | [CVE-2025-40134](https://patchblox.com/security/data/cve/CVE-2025-40134.md) | Routine | kernel-64k-debug-modules-core: The kernel packages contain the Linux kernel, the core of any Linux operating system | 4.7 | 0.0023 | | | [CVE-2025-38400](https://patchblox.com/security/data/cve/CVE-2025-38400.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bug... | 5.5 | 0.0022 | | | [CVE-2025-38470](https://patchblox.com/security/data/cve/CVE-2025-38470.md) | Routine | net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime | 5.5 | 0.0021 | | | [CVE-2025-38097](https://patchblox.com/security/data/cve/CVE-2025-38097.md) | Routine | espintcp: remove encap socket caching to avoid reference leak | 5.5 | 0.0021 | | | [CVE-2025-22105](https://patchblox.com/security/data/cve/CVE-2025-22105.md) | Routine | kernel: In the Linux kernel, the following vulnerability has been resolved: bonding: check xdp prog when set bond mode Follow... | 5.5 | 0.0020 | | | [CVE-2025-38166](https://patchblox.com/security/data/cve/CVE-2025-38166.md) | Routine | bpf: fix ktls panic with sockmap | 5.5 | 0.0020 | | | [CVE-2025-37980](https://patchblox.com/security/data/cve/CVE-2025-37980.md) | Routine | block: fix resource leak in blk_register_queue() error path | 5.5 | 0.0019 | | | [CVE-2025-38441](https://patchblox.com/security/data/cve/CVE-2025-38441.md) | Routine | kernel-debug-modules: The kernel packages contain the Linux kernel, the core of any Linux operating system | 5.5 | 0.0019 | | --- Data as of 2026-11-07T18:46:35Z UTC. 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