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<a href="https://gitlab.rtems.org/sebhub">Sebastian Huber</a> created a merge request: <a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1463">!1463</a>
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Project:Branches: sebhub/rtems:resource-snapshot to rtems/rtos/rtems:main
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<div class="author">
Author: Sebastian Huber
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Assignee: Sebastian Huber
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Reviewer: Joel Sherrill
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<h2 id="user-content-summary" dir="auto" style="margin-top: 0px; margin-bottom: 10px;" align="initial">Summary<a href="#summary" aria-label="Link to heading 'Summary'" data-heading-content="Summary" class="anchor" style="margin-top: 0px;"></a>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">cpukit/libcsupport: Store the member offsets</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">rtems_resource_snapshot_take() took the address of the scalar member
active_posix_keys and indexed it as an array of 15 elements. That is
undefined behaviour. It also bound the order of objects_info_table to
the order of the structure members. Nothing checked that order.
Coverity reported this as CID 1399703.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Store the offset of the target member in each row of the table. Take
the offset with offsetof(). Write the active count through that
offset. Each row names the member it fills, so the order and the
layout of the structure do not matter. Assert that the structure fits
the offset type.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The public header is unchanged.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Close <a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/work_items/5736" title="resource_snapshot.c Coverity Report of Memory Corruption" class="gfm gfm-issue" data-original="#5736" data-link="false" data-link-reference="false" data-issue="29965" data-project="26" data-iid="5736" data-namespace-path="rtems/rtos/rtems" data-project-path="rtems/rtos/rtems" data-issue-type="issue" data-container="body" data-placement="top" data-reference-type="issue" style="margin-top: 0px;">#5736</a>.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Assisted-by: Claude:claude-opus-5 claude-code
Signed-off-by: Sebastian Huber <a href="mailto:sebastian.huber@embedded-brains.de" style="margin-top: 0px;">sebastian.huber@embedded-brains.de</a></p>
<h2 id="user-content-generative-ai" dir="auto" style="margin-top: 20px; margin-bottom: 0px;" align="initial">Generative AI<a href="#generative-ai" aria-label="Link to heading 'Generative AI'" data-heading-content="Generative AI" class="anchor" style="margin-top: 0px;"></a>
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