Tracker / CVE-2026-46234
CVE-2026-46234
High 7.8
In the Linux kernel, the following vulnerability has been resolved: vsock: fix buffer size clamping order In vsock_update_buffer_size(), the buffer size was being clamped to the maximum first, and then to the minimum. If a user sets a minimum buffer size larger than the maximum, the minimum check overrides the maximum check, inverting the constraint. This breaks the intended socket memory boundaries by allowing the vsk->buffer_size to grow beyond the configured vsk->buffer_max_size. Fix this by checking the minimum first, and then the maximum. This ensures the buffer size never exceeds the buffer_max_size.
Affected products and versions
| linux | linux_kernel · 5.11 → 5.15.209 |
|---|---|
| linux | linux_kernel · 5.16 → 6.1.175 |
| linux | linux_kernel · 5.5 → 5.10.258 |
| linux | linux_kernel · 6.13 → 6.18.32 |
| linux | linux_kernel · 6.19 → 7.0.9 |
| linux | linux_kernel · 6.2 → 6.6.140 |
| linux | linux_kernel · 6.7 → 6.12.90 |
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.