CVEvulnerability
CVE-2026-64515
8.3 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-07-25
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.3 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
- Weaknesses
- CWE-787
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: fix MLE defragmentation
If either reconf or EPCS multi-link element (MLE) is contained in
a non-transmitted profile, the defragmentation routine is called
with a pointer to the defragmented copy, but the original elements.
This is incorrect for two reasons:
- if the original defragmentation was needed, it will not find the
correct data
- if the original frame is at a higher address, the parsing will
potentially overrun the heap data (though given the layout of
the buffers, only into the new defragmentation buffer, and then
it has to stop and fail once that's filled with copied data.
Fix it by tracking the container along with the pointer and in
doing so also unify the two almost identical defragmentation
routines.
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://git.kernel.org/stable/c/1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4 git.kernel.org
- https://git.kernel.org/stable/c/55c479aae99b120489a432db9c717484e523dfd6 git.kernel.org
- https://git.kernel.org/stable/c/722b3f86df80644463d29fe5451e30a617f74500 git.kernel.org
- https://git.kernel.org/stable/c/a74e893f30db64cdce0fc7a96d3baa417bcd55f5 git.kernel.org