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https://bugs.gentoo.org/746419
This backports and consolidates the following commits from upstream git:
commit a7205eda482948a0408b0ed29cdde89593feedc7
Author: Ethan A Merritt <merritt@u.washington.edu>
Date: Sat Sep 12 10:18:10 2020 -0700
Better error handling for faulty font syntax
Commit 660e2fbd failed to deal with an error detected at the final character
of a text string.
Bugs #2303 #2308
commit 660e2fbd681cb47acd42595f050fb2f938194b0e
Author: Ethan A Merritt <merritt@u.washington.edu>
Date: Tue Sep 1 17:57:37 2020 -0700
Better error handling for faulty font syntax
A missing close-quote in an enhanced text font specification could
cause a segfault.
Bug #2303
--- gnuplot-5.2.8-orig/src/term.c
+++ gnuplot-5.2.8/src/term.c
@@ -2361,7 +2361,7 @@
++p;
if (*p != *start_of_fontname) {
int_warn(NO_CARET, "cannot interpret font name %s", start_of_fontname);
- p = start_of_fontname;
+ break;
}
start_of_fontname++;
end_of_fontname = p++;
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