OceanfromXiaomi opened a new pull request, #17774:
URL: https://github.com/apache/nuttx/pull/17774

   *Note: Please adhere to [Contributing 
Guidelines](https://github.com/apache/nuttx/blob/master/CONTRIBUTING.md).*
   
   ## Summary
   
   In `ctucanfd_chardev_receive()` logic, the CAN message header was not fully 
initialized, which could result in  uninitialized fields and unexpected gaps in 
header, This caused upper-layer applications to fail when comparing packet 
   contents using `memcmp()`
   
   ## Impact
   
   Fixes incorrect CAN message contents caused by uninitialized header
   fields. No API changes and no impact on existing correct use cases.
   
   ## Testing
   
   Tested in an automotive integration project under SIL conditions.


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