CVE-2026-53146

Summary

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

thunderbolt: Limit XDomain response copy to actual frame size

tb_xdomain_copy() copies req->response_size bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the valid frame data in the DMA pool buffer into stale contents from previous transactions.

Use the minimum of frame size and expected response size for the copy length.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < c55da494dfb445fb28df3a9d293c2be6a299cd01affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 7720654b4842bcdfeb64bc002f6186041849e1e7affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 033dfa63bf6be2653441a1dccae4a8313a91bb9daffected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < fc261397295b8ad0654cec747b0ec25ea0011995affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cbaffected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < b5daa920f44cb582272fc9bfaeb67408776cbaefaffected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4affected
LinuxLinuxcdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8ebaffected
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

References