[Xen-changelog] [xen master] libxc: fix retrieval of and remove pointless check on gzip size

[patchbot@xxxxxxx]

commit e9fa4c863623eb169cbf6f282921b00dac698ed5
Author:     Matthew Daley <mattjd@xxxxxxxxx>
AuthorDate: Thu Oct 31 15:58:53 2013 +1300
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Thu Oct 31 21:13:47 2013 +0000

    libxc: fix retrieval of and remove pointless check on gzip size
    
    Coverity-ID: 1055587
    Coverity-ID: 1055963
    Signed-off-by: Matthew Daley <mattjd@xxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 tools/libxc/xc_dom_core.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/libxc/xc_dom_core.c b/tools/libxc/xc_dom_core.c
index 0f367f6..3bf51ef 100644
--- a/tools/libxc/xc_dom_core.c
+++ b/tools/libxc/xc_dom_core.c
@@ -294,8 +294,8 @@ size_t xc_dom_check_gzip(xc_interface *xch, void *blob, 
size_t ziplen)
         return 0;
 
     gzlen = blob + ziplen - 4;
-    unziplen = gzlen[3] << 24 | gzlen[2] << 16 | gzlen[1] << 8 | gzlen[0];
-    if ( (unziplen < 0) || (unziplen > XC_DOM_DECOMPRESS_MAX) )
+    unziplen = (size_t)gzlen[3] << 24 | gzlen[2] << 16 | gzlen[1] << 8 | 
gzlen[0];
+    if ( unziplen > XC_DOM_DECOMPRESS_MAX )
     {
         xc_dom_printf
             (xch,
--
generated by git-patchbot for /home/xen/git/xen.git#master

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog