CVE-2026-7764— Out-of-bounds read in morse.ko Vendor IE processing

Out-of-bounds read in morse.ko Vendor IE processing

An out-of-bounds read vulnerability in the morse.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.12 allows an unauthenticated attacker within radio range to disclose a small amount of kernel heap memory or cause a Denial of Service (kernel oops/panic) via a crafted 802.11ah beacon or probe response frame containing a malformed Vendor Information Element. The function morse_vendor_find_vendor_ie() does not validate the IE length against the expected structure size before its result is passed to morse_vendor_rx_caps_ops_ie() and morse_vendor_fill_sta_vendor_info(), which read at fixed offsets into the IE data. Because the length check only requires the IE to be longer than 3 bytes, an attacker can supply an undersized IE, causing a heap out-of-bounds read of up to 9 bytes. No authentication, association, or user interaction is required.

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Morse Micro HaLowLink 安全漏洞

Morse Micro HaLowLink是Morse Micro公司的一系列长距离无线网关设备。 Morse Micro HaLowLink 2 2.11.12之前版本存在安全漏洞，该漏洞源于morse.ko HaLow Wi-Fi内核驱动中morse_vendor_find_vendor_ie函数未验证IE长度，导致堆越界读取最多9字节，未经身份验证的攻击者可通过特制802.11ah信标或探测响应帧泄露少量内核堆内存或造成拒绝服务。

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