CVE-2026-31623

N/A

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.

CVE Details

CVSS v3.1 ScoreN/A

Published4/24/2026

Last Modified4/24/2026

Sourcenvd

Honeypot Sightings0

References

https://git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

IOC Correlations

No correlations recorded

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