CVE-2026-53148

Summary

In the Linux kernel, the following vulnerability has been resolved:

thunderbolt: Clamp XDomain response data copy to allocation size

tb_xdp_properties_request() derives the per-packet copy length from the response header without checking that it fits in the previously allocated data buffer. A malicious peer can set its length field larger than the declared data_length, causing memcpy to write past the kcalloc allocation.

Clamp the per-packet copy length so that the cumulative offset never exceeds data_len.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 0b334279a82d79fb4723bd4f614305de1ab69caaaffected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 6021d39ccd979713b39b980286020d8f9a45efd1affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0daffected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 5db10c8ad8c09f72c847dfeef3d876098257f505affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 05a43157676c243c248d1c6d9dcecbe6eba2f35daffected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < fcbd0cdab92838854a5818be7ed8a097164ef6d5affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 906035d5c3784570191d259cbf9a0ac1617852b5affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 322e93448d908434ae5545660fcbe8f5a7a8e141affected
LinuxLinux4.15affected
LinuxLinux0 < 4.15unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.143 <= 6.6.*unaffected
LinuxLinux6.12.94 <= 6.12.*unaffected
LinuxLinux6.18.36 <= 6.18.*unaffected
LinuxLinux7.0.13 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

ADP Enrichment

kernel: thunderbolt: Clamp XDomain response data copy to allocation size

Additional References

References