diff options
| author | Owen Taylor <otaylor@redhat.com> | 2004-08-20 17:59:24 +0000 |
|---|---|---|
| committer | Owen Taylor <otaylor@src.gnome.org> | 2004-08-20 17:59:24 +0000 |
| commit | ed60d5f28cf047a7d3c82a6d8ee4fa97da931e45 (patch) | |
| tree | 8393c8cf7e0ae25461676d641e2907ec613b49fc /gdk-pixbuf/io-bmp.c | |
| parent | a1f93eb16c699b60818e950953a50a73fb59759e (diff) | |
| download | gdk-pixbuf-ed60d5f28cf047a7d3c82a6d8ee4fa97da931e45.tar.gz | |
Fix infinite loop that can occur for bad image data (#150601, Chris Evans,
Fri Aug 20 11:59:10 2004 Owen Taylor <otaylor@redhat.com>
* io-bmp.c: Fix infinite loop that can occur for bad
image data (#150601, Chris Evans, Manish Singh)
Diffstat (limited to 'gdk-pixbuf/io-bmp.c')
| -rw-r--r-- | gdk-pixbuf/io-bmp.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gdk-pixbuf/io-bmp.c b/gdk-pixbuf/io-bmp.c index 82ddba130..015eca8da 100644 --- a/gdk-pixbuf/io-bmp.c +++ b/gdk-pixbuf/io-bmp.c @@ -876,8 +876,18 @@ DoCompressed(struct bmp_progressive_state *context, GError **error) guchar c; gint idx; - if (context->compr.y >= context->Header.height) + /* context->compr.y might be past the last line because we are + * on padding past the end of a valid data, or we might have hit + * out-of-bounds data. Either way we just eat-and-ignore the + * rest of the file. Doing the check only here and not when + * we change y below is fine since BufferSize is always 2 here + * and the BMP file format always starts new data on 16-bit + * boundaries. + */ + if (context->compr.y >= context->Header.height) { + context->BufferDone = 0; return TRUE; + } y = context->compr.y; |