RTEMS | cpukit/can: Fix out-of-bounds array access in ctucanfd (!1085)

Thu Feb 26 11:34:51 UTC 2026

MITHILESH MATTAPALLI created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1085

Project:Branches: mithileshm/rtems:fix-coverity-ctucanfd to rtems/rtos/rtems:main
Author:   MITHILESH MATTAPALLI

This patch adds strict bounds checking to txtb_id in ctucanfd_worker to prevent out-of-bounds writes to the txb_info array. If the ID exceeds internal-\>ntxbufs, the code now safely bypasses the hardware insert and falls back to scheduling the frame for later processing.

Fixes Coverity CID 1642617. 

Issue #5248.

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View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1085
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