CVE-2025-40183
中文标题:
（暂无数据）
英文标题:
bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6}
漏洞描述
中文描述:
（暂无数据）
英文描述:
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6} Cilium has a BPF egress gateway feature which forces outgoing K8s Pod traffic to pass through dedicated egress gateways which then SNAT the traffic in order to interact with stable IPs outside the cluster. The traffic is directed to the gateway via vxlan tunnel in collect md mode. A recent BPF change utilized the bpf_redirect_neigh() helper to forward packets after the arrival and decap on vxlan, which turned out over time that the kmalloc-256 slab usage in kernel was ever-increasing. The issue was that vxlan allocates the metadata_dst object and attaches it through a fake dst entry to the skb. The latter was never released though given bpf_redirect_neigh() was merely setting the new dst entry via skb_dst_set() without dropping an existing one first.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| Linux | Linux | - | < 3fba965a9aac0fa3cbd8138436a37af9ab466d79 | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
| Linux | Linux | 5.10 | - | - |
cpe:2.3:a:linux:linux:5.10:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
NOT_EXTRACTED
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2025-40183 |
2025-12-03 03:24:31 | 2026-01-12 02:11:44 |
| NVD | nvd_CVE-2025-40183 |
2025-11-15 03:18:45 | 2026-01-12 02:27:46 |
版本与语言
安全公告
变更历史
查看详细变更
- affected_products_count: 8 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']