🔴 严重 | CVE-2026-52931 — In the Linux kernel, the following vulnerability has been re
🔴 《严重安全漏洞：CVE-2026-52931》
CVSS 评分: 严重（9.8） CVE ID: CVE-2026-52931
漏洞描述
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: tp_meter: avoid use of uninit sender vars
batadv_tp_recv_ack() and batadv_tp_stop() are only valid for tp_vars in the
BATADV_TP_SENDER role. When called with a BATADV_TP_RECEIVER role, it
proceeds to read sender-only members that were never initialized, leading
to undefined behavior.
This can be triggered when a node that is currently acting as a receiver in
an ongoing tp_meter session receives a malicious ACK packet.
Guard against this by checking tp_vars->role immediately after the
lookup and bailing out if it is not BATADV_TP_SENDER, before any of
those members are accessed.
| 字段 | 值 |
|---|---|
| CVE ID | CVE-2026-52931 |
| 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
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