High severity7.8NVD Advisory· Published May 8, 2026· Updated Jun 17, 2026
CVE-2026-43339
CVE-2026-43339
Description
In the Linux kernel, the following vulnerability has been resolved:
ipv6: prevent possible UaF in addrconf_permanent_addr()
The mentioned helper try to warn the user about an exceptional condition, but the message is delivered too late, accessing the ipv6 after its possible deletion.
Reorder the statement to avoid the possible UaF; while at it, place the warning outside the idev->lock as it needs no protection.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
106cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.6,<5.10.253
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
- (no CPE)
- osv-coords97 versionspkg:linux/kernelpkg:rpm/almalinux/bpftoolpkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-corepkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/almalinux/kernel-corepkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-rt-64kpkg:rpm/almalinux/kernel-rt-64k-corepkg:rpm/almalinux/kernel-rt-64k-debugpkg:rpm/almalinux/kernel-rt-64k-debug-corepkg:rpm/almalinux/kernel-rt-64k-debug-develpkg:rpm/almalinux/kernel-rt-64k-debug-modulespkg:rpm/almalinux/kernel-rt-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-debug-modules-extrapkg:rpm/almalinux/kernel-rt-64k-develpkg:rpm/almalinux/kernel-rt-64k-modulespkg:rpm/almalinux/kernel-rt-64k-modules-corepkg:rpm/almalinux/kernel-rt-64k-modules-extrapkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/kernel-uki-virt-addonspkg:rpm/almalinux/kernel-zfcpdumppkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/libperfpkg:rpm/almalinux/perfpkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/rtlapkg:rpm/almalinux/rvpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_84&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
>= 4.6.0, < 5.10.253+ 96 more
- (no CPE)range: >= 4.6.0, < 5.10.253
- (no CPE)range: < 4.18.0-553.164.1.el8_10
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 5.14.0-687.46.1.el9_8
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1.160000.2.17
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 4.12.14-122.317.1
- (no CPE)range: < 1-8.7.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/25357b670afb5b517096da783abaa5cc4bf8359envdPatch
- git.kernel.org/stable/c/2d88ed7fa000e19c2dc0fa31b3a849e3f5bca5c1nvdPatch
- git.kernel.org/stable/c/3cd4efb5df72843dfac892d0b3c7a4a8bd926b65nvdPatch
- git.kernel.org/stable/c/7bfafa1b0cd582983ebec6bb20f0a435528fe567nvdPatch
- git.kernel.org/stable/c/7d9f2f4aabd116ca68fbdab5d8fb8dac74c2ea1envdPatch
- git.kernel.org/stable/c/bacc7f31085c9820922f00bc7d79756ffa13123anvdPatch
- git.kernel.org/stable/c/eec49a33611f20336b357b3953df44f1a02049e8nvdPatch
- git.kernel.org/stable/c/fd63f185979b047fb22a0dfc6bd94d0cab6a6a70nvdPatch
News mentions
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