Description

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.

INFO

Published Date :

2026-04-24T14:42:40.566Z

Last Modified :

2026-04-27T13:57:02.737Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2026-31623 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31623.

URL Resource
https://git.kernel.org/stable/c/600dc40554dc5ad1e6f3af51f700228033f43ea7 cve-icon cve-icon
https://git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801 cve-icon cve-icon
https://git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c cve-icon cve-icon
https://git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5 cve-icon cve-icon
https://git.kernel.org/stable/c/d4e1946bea8d6441835eb3fd09b19237ba366a6f cve-icon cve-icon
https://git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2026042426-CVE-2026-31623-64d8@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-31623 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-31623 cve-icon
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