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.
Affected products
linux: linux kernel
References9
- git.kernel.org/stable/c/600dc40554dc5ad1e6f3af51f700228033f43ea7 Patch
- git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801 Patch
- git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c Patch
- git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5 Patch
- git.kernel.org/stable/c/d4e1946bea8d6441835eb3fd09b19237ba366a6f Patch
- git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46 Patch
- git.kernel.org/stable/c/0c5c65a17db729fc63ab656bdaaf0e675a9dbeac
- git.kernel.org/stable/c/6053620fdbcd89fa7e755644efdaab78e0daaae7
- git.kernel.org/stable/c/6807ff49bf796b3823b1e29f97b69316a40a9a94
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
- CWE
- CWE-120
Could this be exploited in your environment?
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