Subj : src/sbbs3/websrvr.cpp
To   : Git commit to main/sbbs/master
From : Rob Swindell (on Debian Linux)
Date : Sat Sep 19 2026 23:53:09

https://gitlab.synchro.net/main/sbbs/-/commit/f9558d66d5a2d9e7df880e7c
Modified Files:
	src/sbbs3/websrvr.cpp
Log Message:
websrvr: terminate the CGI read loop on a FastCGI socket failure

fastcgi_read_wait_timeout() reported its recv(), version and session-ID
failures by returning ret, which is still 0 at each of those points. Zero
is the function's "nothing ready yet" value, so do_cgi_stuff() skipped its
whole body, including the CGI_PROCESS_TERMINATED check, and polled again
immediately. A socket at EOF is always readable, so nothing paced the
retry: a backend that closed its connection left the session spinning at
roughly 1.6 million iterations per second, logging at LOG_ERR on every
one, until max_cgi_inactivity expired as much as two minutes later.

Return CGI_PROCESS_TERMINATED from those three paths and from the two
fastcgi_read_body() failures below them, so the caller tears the session
down at once instead of treating a dead socket as a slow one.

A php-fpm restart is enough to trigger this, which means it fires during
routine package upgrades.

#1246

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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