CVE-2026-23447
net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
6th
In the Linux kernel, the following vulnerability has been resolved: net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check The same bounds-check bug fixed for NDP16 in the previous patch also exists in cdc_ncm_rx_verify_ndp32(). The DPE array size is validated against the total skb length without accounting for ndpoffset, allowing out-of-bounds reads when the NDP32 is placed near the end of the NTB. Add ndpoffset to the nframes bounds check and use struct_size_t() to express the NDP-plus-DPE-array size more clearly. Compile-tested only.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 3, 2026 |
| Last Updated | Apr 13, 2026 |
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Affected Versions
Linux / Linux
0fa81b304a7973a499f844176ca031109487dd31 < 125f932a76a97904ef8a555f1dd53e5d0e288c54 0fa81b304a7973a499f844176ca031109487dd31 < af0d1613d6751489dbf9f69aac1123f0b1e566e5 0fa81b304a7973a499f844176ca031109487dd31 < a5bd5a2710310c965ea4153cba4210988a3454e2 0fa81b304a7973a499f844176ca031109487dd31 < de70da1fb1d152e981ecb3157f7ec2b633005c16 0fa81b304a7973a499f844176ca031109487dd31 < 77914255155e68a20aa41175edeecf8121dac391 8cf7db86a8984ffa3a3388a8df12bc0aa4c79bd7 4ca8b8855264cf1439cdab3da7049bd1e3c2a9e6 a270ca35a9499b58366d696d3290eaa4697a42db
Linux / Linux
5.7
References
git.kernel.org: https://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54 git.kernel.org: https://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5 git.kernel.org: https://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2 git.kernel.org: https://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16 git.kernel.org: https://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391