CVE-2026-64515
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.
How to fix
- Linux Linux1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4, 55c479aae99b120489a432db9c717484e523dfd6, 722b3f86df80644463d29fe5451e30a617f74500, a74e893f30db64cdce0fc7a96d3baa417bcd55f5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff ≤ v < 1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4, 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff ≤ v < 55c479aae99b120489a432db9c717484e523dfd6, 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff ≤ v < 722b3f86df80644463d29fe5451e30a617f74500, 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff ≤ v < a74e893f30db64cdce0fc7a96d3baa417bcd55f5, 6.9 | 1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4, 55c479aae99b120489a432db9c717484e523dfd6, 722b3f86df80644463d29fe5451e30a617f74500, a74e893f30db64cdce0fc7a96d3baa417bcd55f5 |
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