usb: xhci: Fix NULL pointer dereference on certain command aborts 漏洞信息(CVE-2024-57981)

一、漏洞 CVE-2024-57981 基础信息

AIGC 神龙大模型
美国国家漏洞数据库 NVD

漏洞标题

USB: xHCI: 在特定命令中止时修复空指针解引用问题

来源：AIGC 神龙大模型

漏洞描述信息

N/A

来源：AIGC 神龙大模型

CVSS信息

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

来源：AIGC 神龙大模型

漏洞类别

空指针解引用

来源：AIGC 神龙大模型

漏洞标题

usb: xhci: Fix NULL pointer dereference on certain command aborts

来源：美国国家漏洞数据库 NVD

漏洞描述信息

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Fix NULL pointer dereference on certain command aborts If a command is queued to the final usable TRB of a ring segment, the enqueue pointer is advanced to the subsequent link TRB and no further. If the command is later aborted, when the abort completion is handled the dequeue pointer is advanced to the first TRB of the next segment. If no further commands are queued, xhci_handle_stopped_cmd_ring() sees the ring pointers unequal and assumes that there is a pending command, so it calls xhci_mod_cmd_timer() which crashes if cur_cmd was NULL. Don't attempt timer setup if cur_cmd is NULL. The subsequent doorbell ring likely is unnecessary too, but it's harmless. Leave it alone. This is probably Bug 219532, but no confirmation has been received. The issue has been independently reproduced and confirmed fixed using a USB MCU programmed to NAK the Status stage of SET_ADDRESS forever. Everything continued working normally after several prevented crashes.

来源：美国国家漏洞数据库 NVD

CVSS信息

N/A

来源：美国国家漏洞数据库 NVD

漏洞类别

N/A

来源：美国国家漏洞数据库 NVD

二、漏洞 CVE-2024-57981 的公开POC

#	POC 描述	源链接	神龙链接

三、漏洞 CVE-2024-57981 的情报信息

标题： usb: xhci: Fix NULL pointer dereference on certain command aborts - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
标题： usb: xhci: Fix NULL pointer dereference on certain command aborts - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
标题： usb: xhci: Fix NULL pointer dereference on certain command aborts - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
标题： usb: xhci: Fix NULL pointer dereference on certain command aborts - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
标题： usb: xhci: Fix NULL pointer dereference on certain command aborts - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
https://nvd.nist.gov/vuln/detail/CVE-2024-57981