CVE-2026-31623

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()<br /> <br /> A malicious USB device claiming to be a CDC Phonet modem can overflow<br /> the skb_shared_info-&gt;frags[] array by sending an unbounded sequence of<br /> full-page bulk transfers.<br /> <br /> Drop the skb and increment the length error when the frag limit is<br /> reached. This matches the same fix that commit f0813bcd2d9d ("net:<br /> wwan: t7xx: fix potential skb-&gt;frags overflow in RX path") did for the<br /> t7xx driver.