Hi, I'm new to Mutt, I analyzed the source code and found a potential bug that may cause crash.
In mutt-1.8.3/pager.c:1737:4, if "regcomp” failed, "regexec" would cause a crash since "SearchRE" is null. I think it's unsafe to assume that the library function would be correct. It would be better if we could handle the error properly. Attached please find the patch against version mutt-1.8.3. Hopefully, it can solve this potential bug. Best, Zhouyang
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