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High ELSA-2026-50133 2 CVEs

Important: Unbreakable Enterprise kernel security update (Oracle Linux 8)

Published Feb 27, 2026 · Updated Feb 27, 2026

Summary

[5.15.0-317.197.5.2]
- xfrm: flush all states in xfrm_state_fini (Sabrina Dubroca) [Orabug: 39016261]
- xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added (Sabrina Dubroca) [Orabug: 39016261]
- Revert 'xfrm: destroy xfrm_state synchronously on net exit path' (Sabrina Dubroca) [Orabug: 39016261]
- tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). (Kuniyuki Iwashima) [Orabug: 39016219] {CVE-2025-40149}
- net: Add locking to protect skb->dev access in ip_output (Sharath Chandra Vurukala) [Orabug: 39016219]

Fixed packages 19

ReleasePackageFixed in
Oracle Linux · 8 bpftool 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-container 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-container-debug 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-core 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-debug 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-debug-core 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-debug-devel 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-debug-modules 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-debug-modules-extra 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-devel 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-doc 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-modules 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek-modules-extra 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek64k 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek64k-core 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek64k-devel 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek64k-modules 0:5.15.0-317.197.5.2.el9uek
Oracle Linux · 8 kernel-uek64k-modules-extra 0:5.15.0-317.197.5.2.el9uek

Vulnerabilities 2

  • High 7.8

    tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().

    In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's u…

  • Unscored —

    xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added

    In the Linux kernel, the following vulnerability has been resolved: xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added In commit b441cf3f8c4b ("xfrm: delete x->tunnel as we delete x"), I missed the case where state creat…