0015-fix-infinite-loop-when-extracting-empty-bzip2-data.patch (774B)
1 From e646271050da793fe50fe829b465c4e692fb7d53 Mon Sep 17 00:00:00 2001 2 From: Kamil Dudka <kdudka@redhat.com> 3 Date: Mon, 14 Sep 2015 18:24:56 +0200 4 Subject: [PATCH] fix infinite loop when extracting empty bzip2 data 5 6 --- 7 extract.c | 6 ++++++ 8 1 file changed, 6 insertions(+) 9 10 diff --git a/extract.c b/extract.c 11 index f951b9f..188f1cf 100644 12 --- a/extract.c 13 +++ b/extract.c 14 @@ -2729,6 +2729,12 @@ __GDEF 15 int repeated_buf_err; 16 bz_stream bstrm; 17 18 + if (G.incnt <= 0 && G.csize <= 0L) { 19 + /* avoid an infinite loop */ 20 + Trace((stderr, "UZbunzip2() got empty input\n")); 21 + return 2; 22 + } 23 + 24 #if (defined(DLL) && !defined(NO_SLIDE_REDIR)) 25 if (G.redirect_slide) 26 wsize = G.redirect_size, redirSlide = G.redirect_buffer; 27 -- 28 2.20.1 29