CVE-2026-64339 | Linux Kernel up to 6.18.38/7.1.3/7.2-rc2 usbio usbio_bulk_msg rxbuf_len/txbuf_len/len out-of-bounds

July 25, 2026 Yanac

A vulnerability identified as problematic has been detected in Linux Kernel up to 6.18.38/7.1.3/7.2-rc2. This vulnerability affects the function usbio_bulk_msg of the component usbio. Performing a manipulation of the argument rxbuf_len/txbuf_len/len results in out-of-bounds read.

This vulnerability was named CVE-2026-64339. The attack may be initiated remotely. There is no available exploit.

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