[SAST] Fix several potential null dereference cases#2765

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Canned-pineapple-8 wants to merge 3 commits into

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Canned-pineapple-8:fix/null-dereferences-issue-2755

Commits on May 6, 2026

Fix(websockets): check ub for NULL before uwsgi_buffer_destroy()
Canned-pineapple-8
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Fix(exceptions): add NULL check for exception_msg before dereference
Canned-pineapple-8
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Fix(xmlconf): check strdup() success in textElement() and endElement()
Canned-pineapple-8
committed