High severity7.8NVD Advisory· Published May 8, 2026· Updated May 15, 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
16cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 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:*:*:*:*:*:*
- osv-coords8 versionspkg: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
< 4.12.14-122.317.1+ 7 more
- (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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