https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T02:36:08.861584+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-31623 CVE-2026-31623 — net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete() 2026-09-29T02:36:08.863389+00:00

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()

A malicious USB device claiming to be a CDC Phonet modem can overflow the skb_shared_info->frags[] array by sending an unbounded sequence of full-page bulk transfers.

Drop the skb and increment the length error when the frag limit is reached. This matches the same fix that commit f0813bcd2d9d ("net: wwan: t7xx: fix potential skb->frags overflow in RX path") did for the t7xx driver.