Tracker / CVE-2026-64244
CVE-2026-64244
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: drivers/base/memory: set mem->altmap after successful device registration If __add_memory_block() fails at xa_store() (under memory pressure for example), device_unregister() is called, which eventually triggers memory_block_release() with mem->altmap still set, causing a WARN_ON(mem->altmap). This was triggered by modifying virtio-mem driver. Fix this by delaying the assignment of mem->altmap until after __add_memory_block() has succeeded.
Affected products and versions
| linux | linux_kernel · 6.13 → 6.18.37 |
|---|---|
| linux | linux_kernel · 6.19 → 7.0.14 |
| linux | linux_kernel · 6.6 → 6.6.144 |
| linux | linux_kernel · 6.7 → 6.12.95 |
| linux | linux_kernel · 7.1 → 7.1.2 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.