wifi:rtw88:usb:一切设置完成后安排 rx 工作(CVE-2024-46760)

admin 2024-09-19 12:41:10 Ali_nvd 来源:ZONE.CI 全球网 0 阅读模式
wifi:rtw88:usb:一切设置完成后安排 rx 工作(CVE-2024-46760)

CVE编号

CVE-2024-46760

利用情况

暂无

补丁情况

N/A

披露时间

2024-09-18
漏洞描述
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: usb: schedule rx work after everything is set up Right now it's possible to hit NULL pointer dereference in rtw_rx_fill_rx_status on hw object and/or its fields because initialization routine can start getting USB replies before rtw_dev is fully setup. The stack trace looks like this: rtw_rx_fill_rx_status rtw8821c_query_rx_desc rtw_usb_rx_handler ... queue_work rtw_usb_read_port_complete ... usb_submit_urb rtw_usb_rx_resubmit rtw_usb_init_rx rtw_usb_probe So while we do the async stuff rtw_usb_probe continues and calls rtw_register_hw, which does all kinds of initialization (e.g. via ieee80211_register_hw) that rtw_rx_fill_rx_status relies on. Fix this by moving the first usb_submit_urb after everything is set up. For me, this bug manifested as: [8.893177] rtw_8821cu 1-1:1.2: band wrong, packet dropped [8.910904] rtw_8821cu 1-1:1.2: hw->conf.chandef.chan NULL in rtw_rx_fill_rx_status because I'm using Larry's backport of rtw88 driver with the NULL checks in rtw_rx_fill_rx_status.
解决建议
建议您更新当前系统或软件至最新版,完成漏洞的修复。
参考链接
https://git.kernel.org/stable/c/25eaef533bf3ccc6fee5067aac16f41f280e343e
https://git.kernel.org/stable/c/adc539784c98a7cc602cbf557debfc2e7b9be8b3
https://git.kernel.org/stable/c/c83d464b82a8ad62ec9077637f75d73fe955635a
CVSS3评分 N/A
  • 攻击路径 N/A
  • 攻击复杂度 N/A
  • 权限要求 N/A
  • 影响范围 N/A
  • 用户交互 N/A
  • 可用性 N/A
  • 保密性 N/A
  • 完整性 N/A
N/A
CWE-ID 漏洞类型
- avd.aliyun.com
weinxin
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