CVE-2026-74681: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: check ibuf_len against rxbuf_len in bulk msg ibuf_len is the bulk IN (receive) buffer size, but the EMSGSIZE check in usbio_bulk_msg() compares it against txbuf_len — the bulk OUT endpoint size. Both are taken independently from different endpoints in usbio_probe(), so the check is wrong when they differ. Use rxbuf_len for the IN direction. This matches the buffer that actually holds the response data.

Засегнати продукти

• Linux Linux: 121a0f839dbb397af5fabb701cea3e9983223e50 преди ebfd1e82ab0a6d26efd9bdd89de899215851f5bf; 121a0f839dbb397af5fabb701cea3e9983223e50 преди 9ad0164f78b66b0b5eca3a5748cc94dd87e28124; 121a0f839dbb397af5fabb701cea3e9983223e50 преди 7e22c9f79b200672f3e477421b6c9050d8cf70a5
• Linux Linux: 6.18; преди 6.18; 6.18.45 до 6.18.*; 7.1.9 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74681
• https://nvd.nist.gov/vuln/detail/CVE-2026-74681
• https://git.kernel.org/stable/c/ebfd1e82ab0a6d26efd9bdd89de899215851f5bf
• https://git.kernel.org/stable/c/9ad0164f78b66b0b5eca3a5748cc94dd87e28124
• https://git.kernel.org/stable/c/7e22c9f79b200672f3e477421b6c9050d8cf70a5