发布时间: 2024年6月28日
修改时间: 2024年7月12日
In the Linux kernel, the following vulnerability has been resolved:bpf: Allow delete from sockmap/sockhash only if update is allowedWe have seen an influx of syzkaller reports where a BPF program attached toa tracepoint triggers a locking rule violation by performing a map_deleteon a sockmap/sockhash.We don t intend to support this artificial use scenario. Extend theexisting verifier allowed-program-type check for updating sockmap/sockhashto also cover deleting from a map.From now on only BPF programs which were previously allowed to updatesockmap/sockhash can delete from these map types.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Local | Local |
| CVSS评分 | 4.7 | 4.7 |
| Attack Complexity | High | High |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | High | High |
| User Interaction | None | None |
| Availability | None | None |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-4961 | kernel security update | 2024年6月28日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | kernel | Unaffected |
| KY3.5.2 | kernel | Fixed |
| KY3.5.2 | kernel | Unaffected |
| V6 | kernel | Fixed |
