Tracker / CVE-2024-46794
CVE-2024-46794
Low 3.3
In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix data leak in mmio_read() The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmio_read() unintentionally exposes the value of an initialized variable (val) on the stack to the VMM. This variable is only needed as an output value. It did not need to be passed to the VMM in the first place. Do not send the original value of *val to the VMM. [ dhansen: clarify what 'val' is used for. ]
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · … → 5.19 |
| linux | linux_kernel · 6.1 → 6.1.110 |
| linux | linux_kernel · 6.10 → 6.10.10 |
| linux | linux_kernel · 6.6 → 6.6.51 |
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.