CVE-2026-98071— Linux内核net/rds局部变量信息泄露漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
在 Linux 内核中，已修复以下漏洞： net/rds：在 rds_conn_path_reset() 中逐个清除 cp_flags 位 rds_conn_path_reset() 函数通过简单的赋值语句 将整个标志字清零。然而，该标志字的其他所有访问者均使用原子位操作（atomic bitops），且其中一些操作可能与重置操作并发执行。具体而言， 标志由 设置，并由传输完成路径清除，但这些路径中均没有任何机制能阻止关闭工作线程（shutdown worker）的执行。因此，对同一标志字执行普通的存储操作（pla
可能的 ATT&CK 技术 1 AI
T1203 · Exploitation for Client Execution影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 00e0f34c616603ba6500f41943cbf89eb4a8a5be< c9a7c1eb0ad41dcf004a9e870e452cafedcd9172 |
affected |
00e0f34c616603ba6500f41943cbf89eb4a8a5be< b767b48614c38687d717082860de7aa46f3b142c |
affected | ||
00e0f34c616603ba6500f41943cbf89eb4a8a5be< b7dc5da660eb5ffa7f7b4d33f2c74cb71c6edd6c |
affected | ||
00e0f34c616603ba6500f41943cbf89eb4a8a5be< b8a8b6d25e7426a638c60eaba2129c0664131e84 |
affected | ||
00e0f34c616603ba6500f41943cbf89eb4a8a5be< ed3ee0ac4aafda50c2f4381eb973beefeb7879ac |
affected | ||
00e0f34c616603ba6500f41943cbf89eb4a8a5be< 6b8d7563c28b8112e6e54abe413b028ef3f8c549 |
affected | ||
00e0f34c616603ba6500f41943cbf89eb4a8a5be< cb62aa8f04655a4df487913949719c0a1266ed73 |
affected | ||
00e0f34c616603ba6500f41943cbf89eb4a8a5be< 103c4b13c4f50322910078d1c02f29334a574122 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2026-98071 基础信息
漏洞信息
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Vulnerability Title
net/rds: clear cp_flags bits individually in rds_conn_path_reset()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net/rds: clear cp_flags bits individually in rds_conn_path_reset()
rds_conn_path_reset() wipes the whole flag word with a plain
cp->cp_flags = 0 store. Every other accessor of that word uses
atomic bitops, and some of them can run concurrently with the reset:
RDS_LL_SEND_FULL is set from rds_send_xmit() and cleared from the
transport completion paths, neither of which holds anything that
excludes the shutdown worker. A plain store racing an atomic
read-modify-write on the same word is a data race, and whichever
side loses has its update silently discarded.
Clear the two bits the reset is actually responsible for instead.
RDS_IN_XMIT and RDS_RECV_REFILL need no store at all here: they
belong to the caller, rds_conn_shutdown(), which waits for both to be
clear before calling the transport shutdown and this reset.
This also gives every bit in cp_flags a single well-defined writer
discipline, which the following patches rely on when they turn
RDS_IN_XMIT and RDS_RECV_REFILL into bit locks held across the
teardown: a blanket store mid-teardown would destroy lock ownership
that an atomic clear preserves.
Oracle UEK carries the same conversion ("net/rds: Preserve essential
connection state flags"), motivated by its asynchronous shutdown
state machine, whose progress and destroy flags must survive the
reset. UEK's variant also clears RDS_IN_XMIT and RDS_RECV_REFILL
because there the reset runs as the final step of a teardown that
owns both bits, making those clears its unlock. Upstream that
release belongs in rds_conn_shutdown(): once a later patch in this
series turns the two bits into locks held across the teardown, ending
ownership needs release semantics and a wake-up that a plain clear
inside the reset would not provide.
Based on Oracle UEK commit "net/rds: Preserve essential connection
state flags" by Gerd Rausch.
来源: CVE Program / CVE List V5
CVSS Information
N/A
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-2026-98071 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-98071 补丁与修复 (8)
同批安全公告 · Linux · 2026-09-25 · 共 372 条
| CVE-2026-100075 | 9.8 CRITICAL | RDMA/srpt：srpt_alloc_rw_ctxs() 未释放计数器修复 |
| CVE-2026-97555 | 8.8 HIGH | smb客户端：修复DACL所有者/组重写中的堆溢出漏洞 |
| CVE-2026-97957 | 8.8 HIGH | hinic 邮箱段缓冲区溢出漏洞 |
| CVE-2026-97527 | 8.8 HIGH | qla2xxx SCSI驱动程序 NVMe未解决上下文列表竞争条件漏洞 |
| CVE-2026-97528 | 8.8 HIGH | QLogic qla2xxx驱动LS拒绝错误NVMe内存泄漏漏洞 |
| CVE-2026-98115 | 8.8 HIGH | ksmbd 注销期间会话安全排空漏洞 |
| CVE-2026-97525 | 8.2 HIGH | x86/mm/pat：内核页表分裂页表分配漏洞 |
| CVE-2026-98069 | 8.1 HIGH | Net/RDS rds_conn_shutdown() 快速路径锁获取漏洞 |
| CVE-2026-97573 | 8.1 HIGH | bnxt_en 驱动 bnxt_rx_ring_reset 缓冲区分配失败漏洞 |
| CVE-2026-97570 | 8.1 HIGH | bnxt_en: 修复因SW TPA ID绑定问题导致的崩溃漏洞 |
| CVE-2026-98130 | 8.1 HIGH | SCTP定时器启动竞争条件漏洞 |
| CVE-2026-98070 | 8.1 HIGH | Linux RDS 模块远程代码执行漏洞 |
| CVE-2026-98002 | 7.8 HIGH | AMD IOMMU 嵌套域分配中错误检查失效漏洞 |
| CVE-2026-97575 | 7.8 HIGH | v4l2-ctrls AV1瓦片计数验证漏洞 |
| CVE-2026-97576 | 7.8 HIGH | V4L2-ctrls HEVC 瓦片计数验证漏洞 |
| CVE-2026-97941 | 7.8 HIGH | Linux 内核 slab 内存分配器竞态条件漏洞 |
| CVE-2026-98112 | 7.8 HIGH | ksmbd 网络接口事件中监听器任务生命周期修复漏洞 |
| CVE-2026-97937 | 7.8 HIGH | Linux内核ftrace远程代码执行漏洞 |
| CVE-2026-97580 | 7.8 HIGH | rkvdec HEVC解析数组越界漏洞 |
| CVE-2026-97940 | 7.8 HIGH | IPv6 修复 fib6 遍历器在 seq 停止时存在 UAF 漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-98071
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