🔴 严重 | CVE-2026-52914 — In the Linux kernel, the following vulnerability has been re
🔴 《严重安全漏洞：CVE-2026-52914》
CVSS 评分: 严重（9.8） CVE ID: CVE-2026-52914
漏洞描述
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: fix fragment reassembly length accounting
batman-adv keeps a running payload length for queued fragments and uses it
to validate a fragment chain before reassembly.
That accounting currently allows the accumulated fragment length to be
truncated during updates. As a result, malformed fragment chains can
bypass the intended validation and drive reassembly with inconsistent
length state, leading to a local denial of service.
Fix the accounting by storing the accumulated length in a length-typed
field and rejecting update overflows before the existing validation logic
runs.
The fix was verified against the original reproducer and against valid
fragment reassembly paths.
| 字段 | 值 |
|---|---|
| CVE ID | CVE-2026-52914 |
| CVSS 评分 | 9.8 |
| 严重程度 | 严重 |
| 发布时间 | 2026-06-24 |
| 状态 | Received |
数据来源: NVD | 获取时间: 2026-06-28 18:14