CVE-2026-43339
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < eec49a33611f20336b357b3953df44f1a02049e8 | affected |
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < bacc7f31085c9820922f00bc7d79756ffa13123a | affected |
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 7bfafa1b0cd582983ebec6bb20f0a435528fe567 | affected |
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 7d9f2f4aabd116ca68fbdab5d8fb8dac74c2ea1e | affected |
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 25357b670afb5b517096da783abaa5cc4bf8359e | affected |
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 3cd4efb5df72843dfac892d0b3c7a4a8bd926b65 | affected |
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 2d88ed7fa000e19c2dc0fa31b3a849e3f5bca5c1 | affected |
| Linux | Linux | f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < fd63f185979b047fb22a0dfc6bd94d0cab6a6a70 | affected |
| Linux | Linux | 4.6 | affected |
| Linux | Linux | 0 < 4.6 | unaffected |
| Linux | Linux | 5.10.253 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.203 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.168 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.134 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.81 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.22 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.12 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
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
- https://git.kernel.org/stable/c/3cd4efb5df72843dfac892d0b3c7a4a8bd926b65
- https://git.kernel.org/stable/c/2d88ed7fa000e19c2dc0fa31b3a849e3f5bca5c1
- https://git.kernel.org/stable/c/fd63f185979b047fb22a0dfc6bd94d0cab6a6a70
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.