CVE-2026-23447None▾ SunlitIn 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()…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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.
Linux >= 0fa81b304a7973a499f844176ca031109487dd31 < baf246d6680befde2086b1df9eb3aaba3fb6853fLinux >= 0fa81b304a7973a499f844176ca031109487dd31 < 125f932a76a97904ef8a555f1dd53e5d0e288c54Linux >= 0fa81b304a7973a499f844176ca031109487dd31 < af0d1613d6751489dbf9f69aac1123f0b1e566e5Linux >= 0fa81b304a7973a499f844176ca031109487dd31 < a5bd5a2710310c965ea4153cba4210988a3454e2Linux >= 0fa81b304a7973a499f844176ca031109487dd31 < de70da1fb1d152e981ecb3157f7ec2b633005c16Linux >= 0fa81b304a7973a499f844176ca031109487dd31 < 77914255155e68a20aa41175edeecf8121dac391Linux 8cf7db86a8984ffa3a3388a8df12bc0aa4c79bd7Linux 4ca8b8855264cf1439cdab3da7049bd1e3c2a9e6Linux a270ca35a9499b58366d696d3290eaa4697a42dbLinux >= 4.14.317 < 4.15Linux >= 4.19.285 < 4.20Linux >= 5.4.245 < 5.5Linux 5.7Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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