CVE-2026-99091— 蓝牙 MGMT 电源关闭时命令状态修复漏洞
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，以下漏洞已得到修复： 蓝牙：MGMT：修复电源关闭时已挂起命令的状态报告问题 函数接收一个 结构体。对于没有 回调的挂起命令，代码会落入 分支。 将 参数视为 类型进行读取，因此返回的状态值取自 结构表示的第一个字节，而非预期的 字段。 提交 f53e1c9c726d（"Bluetooth: MGMT: Fix possible crash on mgmt_index_removed"）将调用方传入的 参数从 改为 ，并更新了 分支以使用 ，但却遗漏了对落入 分支的 参数进行相应更新。 在
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-99091 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Bluetooth: MGMT: Fix status of pending commands flushed on power off
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: MGMT: Fix status of pending commands flushed on power off
cmd_complete_rsp() receives a struct cmd_lookup and, for a pending
command that has no cmd_complete callback, falls through to
cmd_status_rsp(cmd, data). cmd_status_rsp() reads data as a u8 *, so
the status sent comes from the first byte of match->sk's
representation, not from match->mgmt_status.
commit f53e1c9c726d ("Bluetooth: MGMT: Fix possible crash on
mgmt_index_removed") changed the callers' data from &status to &match
and updated the cmd_complete branch to match->mgmt_status, but left
the fall-through passing data unchanged.
In mgmt_index_removed() match->sk is NULL, so every such command is
answered with status 0x00 (Success) instead of
MGMT_STATUS_INVALID_INDEX. In __mgmt_power_off() it is NULL too,
unless a Set Powered command was pending: then settings_rsp() has
stored that command's socket in match->sk, and the byte sent comes
from the socket pointer. Either way the status the caller set,
MGMT_STATUS_NOT_POWERED (or MGMT_STATUS_INVALID_INDEX when the device
is being unregistered), is lost.
Pass the status the callers set.
This was seen on a QCA9377 laptop: bluetoothd's Start Discovery,
pending when the adapter was powered off, was answered with Command
Status 0x00 and no parameters, and bluetoothd 5.72 crashed on the
zero-length success. BlueZ master has since added the length check
on that path ("adapter: Fix crash on short start discovery reply",
BlueZ a734b06059cb), but userspace should still be told Not Powered,
not Success.
Tested on Ubuntu 7.0.0-31 with a virtual controller (hci_vhci):
power off is held in HCI Write Scan Enable while a Start Discovery is
submitted, and the flush answers it with status 0x00 before this
change and 0x0f (Not Powered) after.
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-2026-99091 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。
登录以生成 AI POC三、漏洞 CVE-2026-99091 的情报信息
请登录查看更多情报信息。
CVE-2026-99091 补丁与修复 (5)
同批安全公告 · Linux · 2026-10-26 · 共 12 条
| CVE-2026-99099 | x86/CPU/AMD TLBI 错误#1718 修复 | |
| CVE-2026-99097 | TEE 动态共享内存分配零大小拒绝漏洞 | |
| CVE-2026-99098 | dm-integrity 内联模式缓冲区溢出漏洞 | |
| CVE-2026-99095 | V3D drm/vc4 驱动未绑定资源释放漏洞 | |
| CVE-2026-99096 | Linux io_uring 权限绕过漏洞 | |
| CVE-2026-99094 | Linux 蓝牙驱动 btintel_pcie 越界漏洞 | |
| CVE-2026-99093 | Linux 内核启动时延迟页表释放调度漏洞 | |
| CVE-2026-99092 | RISC-V BPF JIT 执行内存地址处理漏洞 | |
| CVE-2026-99090 | amdgpu GPU 重置期间 vblank 计数器序列化竞争漏洞 | |
| CVE-2026-99089 | ASoC 三星 I2S 运行时电源管理不平衡漏洞 | |
| CVE-2026-99088 | Open vSwitch 验证 IPv6 地址传输头漏洞 |