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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-43339

ipv6: prevent possible UaF in addrconf_permanent_addr()

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < eec49a33611f20336b357b3953df44f1a02049e8affected
  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < bacc7f31085c9820922f00bc7d79756ffa13123aaffected
  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < 7bfafa1b0cd582983ebec6bb20f0a435528fe567affected
  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < 7d9f2f4aabd116ca68fbdab5d8fb8dac74c2ea1eaffected
  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < 25357b670afb5b517096da783abaa5cc4bf8359eaffected
  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < 3cd4efb5df72843dfac892d0b3c7a4a8bd926b65affected
  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < 2d88ed7fa000e19c2dc0fa31b3a849e3f5bca5c1affected
  • f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac to < fd63f185979b047fb22a0dfc6bd94d0cab6a6a70affected

Linux Linux

Default version status: affected

  • 4.6affected
  • 0 to < 4.6unaffected
  • 5.10.253 to ≤ 5.10.*unaffected
  • 5.15.203 to ≤ 5.15.*unaffected
  • 6.1.168 to ≤ 6.1.*unaffected
  • 6.6.134 to ≤ 6.6.*unaffected
  • 6.12.81 to ≤ 6.12.*unaffected
  • 6.18.22 to ≤ 6.18.*unaffected
  • 6.19.12 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References