发布时间: 2024年11月15日
修改时间: 2024年11月15日
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. ]
| NVD | openEuler | |
|---|---|---|
| Confidentiality | Low | Low |
| Attack Vector | Local | Local |
| CVSS评分 | 3.3 | 3.3 |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | None | None |
| User Interaction | None | None |
| Availability | None | None |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-4990 | kernel security update | 2025年7月19日 |
| 产品 | 包 | 状态 |
|---|---|---|
| V6 | kernel | Fixed |
