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kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report()

🗓️ 25 Nov 2025 16:42:52Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Kernel fix for skb_under_panic buffer underwrite in ip6mr_cache_report to prevent exploitation.

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Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-330)
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5 Oct 202300:00
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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-026 (ALASKERNEL-5.15-2023-026)
6 Sep 202300:00
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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-054 (ALASKERNEL-5.4-2023-054)
6 Oct 202300:00
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Tenable Nessus		EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1212)
2 Feb 202600:00
–nessus
Tenable Nessus		EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1224)
2 Feb 202600:00
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Tenable Nessus		EulerOS Virtualization 2.13.0 : kernel (EulerOS-SA-2026-1629)
18 Mar 202600:00
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Tenable Nessus		EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-1637)
18 Mar 202600:00
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Tenable Nessus		Oracle Linux 7 : kernel (ELSA-2026-0755)
19 Feb 202600:00
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Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-core5.14.0-70.155.1.rt21.227.el9_0kernel-rt-debug-core-5.14.0-70.155.1.rt21.227.el9_0.x86_64.rpm
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Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-devel5.14.0-70.155.1.rt21.227.el9_0kernel-rt-debug-devel-5.14.0-70.155.1.rt21.227.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-kvm5.14.0-70.155.1.rt21.227.el9_0kernel-rt-debug-kvm-5.14.0-70.155.1.rt21.227.el9_0.x86_64.rpm
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Red Hat Enterprise Linux9.0x86_64kernel-rt-debug-modules-extra5.14.0-70.155.1.rt21.227.el9_0kernel-rt-debug-modules-extra-5.14.0-70.155.1.rt21.227.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0x86_64kernel-rt-debuginfo5.14.0-70.155.1.rt21.227.el9_0kernel-rt-debuginfo-5.14.0-70.155.1.rt21.227.el9_0.x86_64.rpm
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30 Jun 2026 03:31Current
7.5High risk
Vulners AI Score7.5
CVSS 3.15.5
EPSS0.00178
SSVC
CWE-124
kernelip6mrskb_under_panicip6mr_cache_reportbuffer underwriteattackerpayload
3