发布时间: 2024年6月4日
修改时间: 2024年7月2日
In the Linux kernel, the following vulnerability has been resolved: regmap: maple: Fix cache corruption in regcache_maple_drop() When keeping the upper end of a cache block entry, the entry[] array must be indexed by the offset from the base register of the block, i.e. max - mas.index. The code was indexing entry[] by only the register address, leading to an out-of-bounds access that copied some part of the kernel memory over the cache contents. This bug was not detected by the regmap KUnit test because it only tests with a block of registers starting at 0, so mas.index == 0.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | ||
| Attack Vector | ||
| CVSS评分 | N/A | N/A |
| Attack Complexity | ||
| Privileges Required | ||
| Scope | ||
| Integrity | ||
| User Interaction | ||
| Availability |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-2572 | In the Linux kernel, the following vulnerability has been resolved: regmap: maple: Fix cache corruption in regcache_maple_drop() When keeping the upper end of a cache block entry, the entry[] array must be indexed by the offset from the base register of the block, i.e. max - mas.index. The code was indexing entry[] by only the register address, leading to an out-of-bounds access that copied some part of the kernel memory over the cache contents. This bug was not detected by the regmap KUnit test because it only tests with a block of registers starting at 0, so mas.index == 0. | 2024年6月4日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5 | kernel | Unaffected |
| KY3.5.2 | kernel | Unaffected |
| KY3.5.3 | kernel | Unaffected |
| V6 | kernel | Unaffected |
