[Issue 17075] New: ctRegex BacktrackingMatcher.prevStack: free(): invalid pointer
via Digitalmars-d-bugs
digitalmars-d-bugs at puremagic.com
Sun Jan 8 10:58:48 PST 2017
https://issues.dlang.org/show_bug.cgi?id=17075
Issue ID: 17075
Summary: ctRegex BacktrackingMatcher.prevStack: free(): invalid
pointer
Product: D
Version: D2
Hardware: x86_64
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: phobos
Assignee: nobody at puremagic.com
Reporter: zorael at gmail.com
Created attachment 1633
--> https://issues.dlang.org/attachment.cgi?id=1633&action=edit
Input that triggers the crash
Download http://pastebin.com/raw/UVF41mPf and pipe it into the following:
import std.stdio;
import std.regex;
import std.conv;
enum titlePattern = `<title>(.+)</title>`;
static titleRegex = ctRegex!titlePattern;
void main()
{
auto content = stdin.byLineCopy.to!string;
auto hits = content.matchAll(titleRegex);
}
----------
*** Error in `./test': free(): invalid pointer: 0x0000000000f42148 ***
======= Backtrace: =========
/usr/lib/libc.so.6(+0x70c4b)[0x7fef85a22c4b]
/usr/lib/libc.so.6(+0x76fe6)[0x7fef85a28fe6]
/usr/lib/libc.so.6(+0x777de)[0x7fef85a297de]
./test(nothrow @nogc @trusted bool
std.regex.internal.backtracking.BacktrackingMatcher!(true).BacktrackingMatcher!(char,
std.regex.internal.ir.Input!(char).Input).BacktrackingMatcher.prevStack()+0x90)[0x4
cd2b8]
[...]
Tested on two machines, both running linux.
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