What happened
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Release request if tb_cfg_request() fails in __tb_xdomain_response() If tb_cfg_request() fails setting up the request (for example the control channel is shut down already) it returns an error without calling the callback. To avoid leaking that memory, call tb_cfg_request_put() if tb_cfg_request() fails.
Affected versions
Linux: d1ff70241a275133e1a0258b7c23588b122276c8 through before 42dddadf6b6131af4d12bfa8bdc84ef954e8cef8 (git); d1ff70241a275133e1a0258b7c23588b122276c8 through before 0325d017bf4354a015a02413ee1c7e51266cecf4 (git); d1ff70241a275133e1a0258b7c23588b122276c8 through before 4c63f29872cb444b33665348bbd2f45cab06afcd (git); 4.15 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.