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Clamp XDomain response data copy to allocation size","CVE":"CVE-2026-53148","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53148","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Clamp XDomain response data copy to allocation size\n\ntb_xdp_properties_request() derives the per-packet copy length from\nthe response header without checking that it fits in the previously\nallocated data buffer.  A malicious peer can set its length field\nlarger than the declared data_length, causing memcpy to write past\nthe kcalloc allocation.\n\nClamp the per-packet copy length so that the cumulative offset\nnever exceeds data_len.","Type":"Description","Title":"thunderbolt: Clamp XDomain response data copy to allocation size"}]}}}