发布时间: 2024年8月23日
修改时间: 2025年4月13日
In the Linux kernel, the following vulnerability has been resolved:KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cacheThere is a potential UAF scenario in the case of an LPI translationcache hit racing with an operation that invalidates the cache, suchas a DISCARD ITS command. The root of the problem is thatvgic_its_check_cache() does not elevate the refcount on the vgic_irqbefore dropping the lock that serializes refcount changes.Have vgic_its_check_cache() raise the refcount on the returned vgic_irqand add the corresponding decrement after queueing the interrupt.
| NVD | openEuler | |
|---|---|---|
| CVSS评分 | 7.8 | 7.8 |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality | High | High |
| Integrity | High | High |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-3569 | kernel security update | 2024年8月23日 |
| KylinSec-SA-2024-4842 | kernel security update | 2024年8月23日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | kernel | Fixed |
| KY3.5.2 | kernel | Fixed |
| KY3.5.2 | kernel | Unaffected |
| V6 | kernel | Unaffected |
