CVE-2026-93185— ASoC rt700-sdw 驱动设备移除时工作队列未排空漏洞
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，以下漏洞已得到解决： ASoC: rt700-sdw: 在移除时始终排空（drain）插孔工作项 仅在 为真时，才会排空（cancel/drain） 和 。然而， 会在 SoundWire 从机状态变为 （未连接）时清除该 状态位。但此时， 或 可能已经在设备初始化期间排队了一个插孔工作项。 修复方案： 不要将 作为移除时排空这些工作对象的保护条件。由于延迟工作项在 期间被初始化，移除操作应无条件地取消这些工作项，并将对象生命周期与编解码器私有数据的生命周期绑定，而不是依赖一个可变的硬件状态
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application影响版本矩阵 16
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 737ee8bdf682cedb3c42b713d20ffa5c899591fb< f1e21b7b977f5ae2955ecf3ab144da2578a4fe00 |
affected |
737ee8bdf682cedb3c42b713d20ffa5c899591fb< b81c2131dbb6fe04e27841bc719977c106177c61 |
affected | ||
737ee8bdf682cedb3c42b713d20ffa5c899591fb< 1bb23c9d68312e77cec81bdfb2cc385e2d2960f7 |
affected | ||
737ee8bdf682cedb3c42b713d20ffa5c899591fb< 45fcf435ffcc5f61a43bd9b19094dc52de6cbc05 |
affected | ||
737ee8bdf682cedb3c42b713d20ffa5c899591fb< 1e8fddab6cbe536dd02e61205e4b9bf97df6479b |
affected | ||
737ee8bdf682cedb3c42b713d20ffa5c899591fb< a47f087877bb2bc57c3ccb714fc49abf45d28e12 |
affected | ||
737ee8bdf682cedb3c42b713d20ffa5c899591fb< 612ccf42acd14bb2685fa60c3495ca13e63e8989 |
affected | ||
5.12 |
affected | ||
| … +8 条更多 | |||
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一、 漏洞 CVE-2026-93185 基础信息
漏洞信息
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Vulnerability Title
ASoC: rt700-sdw: always drain jack work on remove
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
ASoC: rt700-sdw: always drain jack work on remove
rt700_sdw_remove() drains jack_detect_work and jack_btn_check_work only
when rt700->hw_init is true. That state bit is cleared by
rt700_update_status() when the SoundWire slave becomes UNATTACHED, but a
jack work item can already have been queued by rt700_interrupt_callback()
or rt700_jack_init() while the device was initialized.
Do not use hw_init as the remove-time guard for draining these work
objects. The delayed works are initialized during rt700_init(), so remove
can cancel them unconditionally and pair the object lifetime with the
codec-private data lifetime instead of a mutable hardware state bit.
This issue was found by our static analysis tool and then confirmed by
manual review of the SoundWire status, interrupt and remove paths. The
remove path should drain work based on whether the work object exists, not
on a runtime hardware state bit that can change after the work was queued.
A QEMU PoC queued jack_detect_work, simulated SDW_SLAVE_UNATTACHED, and
then entered remove. DEBUG_OBJECTS reported an active timer/work object
associated with the rt700 jack work path after remove skipped the cancel.
This is sent as an RFC because the practical trigger depends on SoundWire
core remove ordering after an UNATTACHED status update. If remove cannot
run after hw_init has been cleared while jack work is still pending, this
is a defensive lifecycle cleanup rather than a reachable race on current
systems.
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-2026-93185 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-93185 补丁与修复 (7)
同批安全公告 · Linux · 2026-09-17 · 共 600 条
| CVE-2026-92489 | 9.8 CRITICAL | Linux内核 xfrm 双重释放漏洞 |
| CVE-2026-90151 | 9.8 CRITICAL | NFSv4客户端分配失败回调处理漏洞 |
| CVE-2026-90235 | 9.8 CRITICAL | 内核sunrpc xprtsock并发读取修复 |
| CVE-2026-90104 | 9.8 CRITICAL | NFSv4.1 解码前未清空调用列表 |
| CVE-2026-90173 | 9.8 CRITICAL | SMB SmbDirect 释放完成队列漏洞 |
| CVE-2026-90110 | 9.4 CRITICAL | inetpeer 随机化RB树节点比较 |
| CVE-2026-90230 | 9.1 CRITICAL | Linux内核Nvme-target堆越界读取漏洞 |
| CVE-2026-90413 | 9.1 CRITICAL | IB/isert 登录PDU数据长度校验漏洞 |
| CVE-2026-90414 | 9.1 CRITICAL | IB/isert拒绝声明超出实际接收数据的PDU |
| CVE-2026-90425 | 8.8 HIGH | Linux内核 5.x 内核漏洞 |
| CVE-2026-93042 | 8.8 HIGH | Linux内核dmaengine模块资源耗尽漏洞 |
| CVE-2026-93189 | 8.8 HIGH | Linux HID核心使用已释放内存漏洞 |
| CVE-2026-90329 | 8.8 HIGH | Linux 内核 HID 驱动探测清理同步漏洞 |
| CVE-2026-90357 | 8.8 HIGH | mt76驱动MT7915无线局域网远程拒绝服务漏洞 |
| CVE-2026-90256 | 8.8 HIGH | Linux Bluetooth L2CAP 远程代码执行漏洞 |
| CVE-2026-90367 | 8.8 HIGH | Linux内核MT7996驱动死锁漏洞 |
| CVE-2026-90381 | 8.8 HIGH | Linux内核mt76驱动无线信道切换漏洞 |
| CVE-2026-90379 | 8.8 HIGH | Linux 内核 mt76 驱动系统崩溃漏洞 |
| CVE-2026-90380 | 8.8 HIGH | MT76驱动 mt792x 使用释放后内存漏洞 |
| CVE-2026-90371 | 8.8 HIGH | mt76 无线驱动 RXDMAD_C 竞态修复 |
显示前 20 条，共 600 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-93185
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