[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-3.0.5-testing] domain builder: Fix sanity check for gzip size.
# HG changeset patch # User kfraser@xxxxxxxxxxxxxxxxxxxxx # Date 1177598569 -3600 # Node ID 58205257517d100282783f4c192106de5bf65ef9 # Parent d0acb5a3e8d8540ceb936a01a14e033619af5226 domain builder: Fix sanity check for gzip size. Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx> --- tools/libxc/xc_dom_core.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff -r d0acb5a3e8d8 -r 58205257517d tools/libxc/xc_dom_core.c --- a/tools/libxc/xc_dom_core.c Thu Apr 26 15:36:09 2007 +0100 +++ b/tools/libxc/xc_dom_core.c Thu Apr 26 15:42:49 2007 +0100 @@ -209,13 +209,13 @@ size_t xc_dom_check_gzip(void *blob, siz unsigned char *gzlen; size_t unziplen; - if (strncmp(blob, "\037\213", 2)) + if ( strncmp(blob, "\037\213", 2) ) /* not gzipped */ return 0; gzlen = blob + ziplen - 4; unziplen = gzlen[3] << 24 | gzlen[2] << 16 | gzlen[1] << 8 | gzlen[0]; - if ( (unziplen < ziplen) || (unziplen > (ziplen * 8)) ) + if ( (unziplen < 0) || (unziplen > (1024*1024*1024)) ) /* 1GB limit */ { xc_dom_printf ("%s: size (zip %zd, unzip %zd) looks insane, skip gunzip\n", _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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