CVE-2026-43339
ipv6: prevent possible UaF in addrconf_permanent_addr()
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/eec49a33611f20336b357b3953df44f1a02049e8
- https://git.kernel.org/stable/c/bacc7f31085c9820922f00bc7d79756ffa13123a
- https://git.kernel.org/stable/c/7bfafa1b0cd582983ebec6bb20f0a435528fe567
- https://git.kernel.org/stable/c/7d9f2f4aabd116ca68fbdab5d8fb8dac74c2ea1e
- https://git.kernel.org/stable/c/25357b670afb5b517096da783abaa5cc4bf8359e
References (8)
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CVSS
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