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CVE-2026-23447

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CVE-2026-23447

Published: Apr 3, 2026

Modified: May 23, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
0fa81b304a7973a499f844176ca031109487dd31 - < 125f932a76a97904ef8a555f1dd53e5d0e288c54
affected
0fa81b304a7973a499f844176ca031109487dd31 - < af0d1613d6751489dbf9f69aac1123f0b1e566e5
affected
0fa81b304a7973a499f844176ca031109487dd31 - < a5bd5a2710310c965ea4153cba4210988a3454e2
affected
0fa81b304a7973a499f844176ca031109487dd31 - < de70da1fb1d152e981ecb3157f7ec2b633005c16
affected
0fa81b304a7973a499f844176ca031109487dd31 - < 77914255155e68a20aa41175edeecf8121dac391

+6 more versions

Linux

Linux

affected
5.7
unaffected
0 - < 5.7
unaffected
6.6.130 - <= 6.6.*
unaffected
6.12.78 - <= 6.12.*
unaffected
6.18.20 - <= 6.18.*

+2 more versions

References

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