CVE-2026-72405— Linux 内核 udp_tunnel_nic_device_sync 双队列漏洞
可能的 ATT&CK 技术 1AI
T1068 · Exploitation for Privilege Escalation影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | cc4e3835eff474aa274d6e1d18f69d9d296d3b76< cee6688e5731c0591643521716d1a1a5c1a98bf8 | affected |
cc4e3835eff474aa274d6e1d18f69d9d296d3b76< 9075efb9b2c1d9d7a8285c937b64aa93ca0c41b7 | affected | ||
cc4e3835eff474aa274d6e1d18f69d9d296d3b76< 54292b167466cdf42176b7b6f01da66c184deb12 | affected | ||
cc4e3835eff474aa274d6e1d18f69d9d296d3b76< ecf69d4b43370c587e48d4d70289dbdb7e039d4d | affected | ||
5.9 | affected | ||
< 5.9 | unaffected | ||
6.12.97≤ 6.12.* | unaffected | ||
6.18.40≤ 6.18.* | unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2026-72405 基础信息
漏洞信息
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Vulnerability Title
net: udp_tunnel: prevent double queueing in udp_tunnel_nic_device_sync
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: udp_tunnel: prevent double queueing in udp_tunnel_nic_device_sync Yue Sun reported a use-after-free and debugobjects warning in udp_tunnel_nic_device_sync_work() during concurrent device operations. The workqueue core clears the internal pending bit before invoking the worker. At that point, a concurrent thread can queue the work again. When the already running worker eventually clears the work_pending flag to 0, it mistakenly clears the flag for the newly queued instance. udp_tunnel_nic_unregister() then observes work_pending as 0 and frees the structure while the second work item is still active in the queue, leading to UAF. Fix this by returning early in udp_tunnel_nic_device_sync() if work_pending is already set, preventing redundant work queueing.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-72405 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC高级
未找到公开 POC。
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CVE-2026-72405 补丁与修复 (4)
同批安全公告 · Linux · 2026-08-15 · 共 846 条
| CVE-2026-74280 | 10.0 CRITICAL | Marvell OCTEONTX 驱动 DMA清理循环索引错误漏洞 |
| CVE-2026-72407 | 10.0 CRITICAL | Geneve 内核模块 inner network offset 验证漏洞 |
| CVE-2026-72408 | 10.0 CRITICAL | Geneve GRO提示处理缺陷 |
| CVE-2026-74279 | 10.0 CRITICAL | Cavium CPT DMA清理使用错误循环索引 |
| CVE-2026-74309 | 10.0 CRITICAL | vdpa/octeon_ep 中断处理程序 IRQ 到环映射错误 |
| CVE-2026-74475 | 10.0 CRITICAL | vxlan 短路由中 neigh_ha_snapshot() 使用错误 |
| CVE-2026-72421 | 10.0 CRITICAL | IPv4 fib 本地/主表忽略错误路由 |
| CVE-2026-72493 | 9.9 CRITICAL | net: 在 enqueue_to_backlog() 中序列化 netif_running() 检查 |
| CVE-2026-72463 | 9.8 CRITICAL | xfrm: 异步恢复中设备使用后释放漏洞 |
| CVE-2026-72248 | 9.8 CRITICAL | netfilter flowtable IPIP隧道直接转发漏洞 |
| CVE-2026-72381 | 9.8 CRITICAL | ksmbd 耐久句柄检查中的use-after-free漏洞 |
| CVE-2026-72477 | 9.8 CRITICAL | NTFS3 重命名失败时调用 _ntfs_bad_inode 漏洞 |
| CVE-2026-72473 | 9.8 CRITICAL | xprtrdma 远程代码执行漏洞 |
| CVE-2026-72472 | 9.8 CRITICAL | NFS 使用rwsem保护文件锁列表遍历 |
| CVE-2026-74406 | 9.8 CRITICAL | VXLAN 内核模块远程代码执行漏洞 |
| CVE-2026-72222 | 9.8 CRITICAL | SunRPC 异步 TLS 握手回调中锁定服务传输 |
| CVE-2026-72137 | 9.8 CRITICAL | Linux xfrm nat_keepalive发送错误时双重释放漏洞 |
| CVE-2026-74376 | 9.8 CRITICAL | md/raid10 复用r10bio处理丢弃时未重置读槽漏洞 |
| CVE-2026-72226 | 9.8 CRITICAL | batman-adv TVLV越界检查溢出漏洞 |
| CVE-2026-72234 | 9.8 CRITICAL | batman-adv 未 realloc 时访问 skb->data 漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-72405
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