PT-2026-52242 · Linux · Linux

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-53146

Mitre

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.

Related Identifiers

CVE-2026-53146

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-53146 · Security Note
• https://git.kernel.org/stable/c/fc261397295b8ad0654cec747b0ec25ea0011995 · Note
• https://git.kernel.org/stable/c/4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb · Note
• https://git.kernel.org/stable/c/b5daa920f44cb582272fc9bfaeb67408776cbaef · Note
• https://git.kernel.org/stable/c/033dfa63bf6be2653441a1dccae4a8313a91bb9d · Note
• https://git.kernel.org/stable/c/a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb · Note
• https://git.kernel.org/stable/c/b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4 · Note
• https://git.kernel.org/stable/c/7720654b4842bcdfeb64bc002f6186041849e1e7 · Note
• https://git.kernel.org/stable/c/c55da494dfb445fb28df3a9d293c2be6a299cd01 · Note