发布时间: 2024年6月14日
修改时间: 2025年2月8日
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet syzbot reported the following uninit-value access issue [1][2]: nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded. This patch resolved this issue by checking payload size before calling each message type handler codes.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | Low |
| Attack Vector | Local | Local |
| CVSS评分 | 5.5 | 3.9 |
| Attack Complexity | Low | High |
| Privileges Required | Low | High |
| Scope | Unchanged | Unchanged |
| Integrity | None | Low |
| User Interaction | None | None |
| Availability | High | Low |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-4735 | In the Linux kernel, the following vulnerability has been resolved: nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet syzbot reported the following uninit-value access issue [1][2]: nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded. This patch resolved this issue by checking payload size before calling each message type handler codes. | 2024年6月14日 |
| KylinSec-SA-2024-4801 | kernel security update | 2024年7月12日 |
| KylinSec-SA-2024-4957 | kernel security update | 2024年6月14日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | kernel | Fixed |
| KY3.5.2 | kernel | Fixed |
| KY3.5.2 | kernel | Unaffected |
| V6 | kernel | Unaffected |
