avoid endless loop with some corrupt pdfs

2016-02-27 12:12:31 +05:30 · 2016-02-27 12:12:31 +05:30 · f07dfdf916
parent bcd7a02667
commit f07dfdf916
1 changed files with 2 additions and 0 deletions
--- a/Shared/lib/python3.4/site-packages/PyPDF2/pdf.py
+++ b/Shared/lib/python3.4/site-packages/PyPDF2/pdf.py
@ -1911,6 +1911,8 @@ class PdfFileReader(object):
            if stream.tell() < 2:
                raise utils.PdfReadError("EOL marker not found")
            step = min(stream.tell()-2, 8*1024)
+            if step < 2:
+                raise utils.PdfReadError("EOL marker not found")
            stream.seek(-step, 1)
            x = stream.read(step)
            if b_('\n') in x or b_('\r') in x: