CVE-2026-53147 | BDVDB-2026-343166 Detail

Description#

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tb_xdp_handle_request() casts the received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer can send a minimal XDomain packet that passes the generic header length check but is shorter than the struct accessed after the cast, causing out-of- bounds reads from the kmemdup allocation. Plumb the packet length through xdomain_request_work and validate it against the expected struct size before each cast.

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History#

1. Version 12026-06-25Record published in the CVE List.
2. Version 22026-10-19Most recent update recorded in the CVE List.