CVE-2026-31623
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < 6807ff49bf796b3823b1e29f97b69316a40a9a94 | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < 0c5c65a17db729fc63ab656bdaaf0e675a9dbeac | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < 6053620fdbcd89fa7e755644efdaab78e0daaae7 | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < d4e1946bea8d6441835eb3fd09b19237ba366a6f | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < a23b1b1aaf41e174181d5853a70e65d4d01e648c | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < c183d5775129a0a7495bd61a6e57ec230dcf01e5 | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < ebf75c6301c4972a87542ebf2d994c6391eb5d46 | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < 9989938d13cc5ba8447eeed5a61acfcf61bc6801 | affected |
| Linux | Linux | 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 < 600dc40554dc5ad1e6f3af51f700228033f43ea7 | affected |
| Linux | Linux | 2.6.31 | affected |
| Linux | Linux | 0 < 2.6.31 | unaffected |
| Linux | Linux | 5.10.258 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.136 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.83 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.24 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.14 <= 6.19.* | unaffected |
| Linux | Linux | 7.0.1 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/6807ff49bf796b3823b1e29f97b69316a40a9a94
- https://git.kernel.org/stable/c/0c5c65a17db729fc63ab656bdaaf0e675a9dbeac
- https://git.kernel.org/stable/c/6053620fdbcd89fa7e755644efdaab78e0daaae7
- https://git.kernel.org/stable/c/d4e1946bea8d6441835eb3fd09b19237ba366a6f
- https://git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c
- https://git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5
- https://git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46
- https://git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801
- https://git.kernel.org/stable/c/600dc40554dc5ad1e6f3af51f700228033f43ea7
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