CVE-2026-72483— Max3421 驱动 max3421_hub_control() 越界移位漏洞
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 2d53139f31626bad6f8983d8e519ddde2cbba921< e5fa9d8f40746ec3447335c9642c03410f5fd3af | affected |
2d53139f31626bad6f8983d8e519ddde2cbba921< 08b1d4cab0230697bc74c63fc4e40170a7559c54 | affected | ||
2d53139f31626bad6f8983d8e519ddde2cbba921< 3be5f24e8270ba53b3c814d13689bb8644c86237 | affected | ||
2d53139f31626bad6f8983d8e519ddde2cbba921< d512bdefd241b98f4d7bcb5bab5614a86411fad4 | affected | ||
2d53139f31626bad6f8983d8e519ddde2cbba921< 00dd025324b56d39d37e57a08f473dab3a660f30 | affected | ||
2d53139f31626bad6f8983d8e519ddde2cbba921< 02d03c61e8a7b016956acb48e8a2512d16d87517 | affected | ||
2d53139f31626bad6f8983d8e519ddde2cbba921< 4da073d57176d8e1c2bca34febfbc81d2560c1a5 | affected | ||
2d53139f31626bad6f8983d8e519ddde2cbba921< cff06b03b530ae1fe8a13e93a7848f2130e00fb4 | affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2026-72483 基础信息
漏洞信息
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Vulnerability Title
usb: host: max3421: Fix shift-out-of-bounds in max3421_hub_control()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: host: max3421: Fix shift-out-of-bounds in max3421_hub_control() The `max3421_hub_control()` function handles USB hub class requests to the virtual root hub. In the `default` branches of both the `ClearPortFeature` and `SetPortFeature` switch statements, it modifies `max3421_hcd->port_status` by left shifting 1 by the request's `value` parameter. However, it does not validate whether this shift will exceed the width of `port_status`. So if a malicious userspace task with access to the root hub via /dev/bus/usb/.../001 issues a USBDEVFS_CONTROL ioctl with `wValue` greater than or equal to 32, the left shift operation invokes shift-out-of-bounds undefined behavior. This results in arbitrary bit corruption of `port_status`, including the normally-immutable change bits, which can bypass internal state checks and confuse the hub status. Fix this by rejecting requests whose `value` exceeds the shift width before performing the shift. This issue was found using a KLEE-based symbolic execution tool for kernel drivers that I'm currently developing.
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-2026-72483 的公开POC
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|---|
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CVE-2026-72483 补丁与修复 (8)
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-2026-74279 | 10.0 CRITICAL | Cavium CPT DMA清理使用错误循环索引 |
| 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-2026-74309 | 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-2026-72226 | 9.8 CRITICAL | batman-adv TVLV越界检查溢出漏洞 |
| CVE-2026-74376 | 9.8 CRITICAL | md/raid10 复用r10bio处理丢弃时未重置读槽漏洞 |
| CVE-2026-72234 | 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-2026-72483
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