mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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a1dc600a07
The code was copying from the wrong member of an union. This caused a huge num_dashes value to be read, which then caused a so large memory allocation that malloc returned an error. Fixes: https://gitlab.freedesktop.org/cairo/cairo/-/issues/448 Signed-off-by: Uli Schlachter <psychon@znc.in>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
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* Copyright © 2020 Ben Pfaff & Uli Schlachter
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Ben Pfaff <blp@cs.stanford.edu>
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* Uli Schlachter <psychon@znc.in>
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*/
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#include "cairo-test.h"
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static cairo_surface_t*
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draw_recording ()
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{
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cairo_surface_t *recording;
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cairo_rectangle_t extents;
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cairo_t *cr;
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extents.x = 0;
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extents.y = 0;
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extents.width = 10;
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extents.height = 10;
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recording = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents);
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cr = cairo_create(recording);
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cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='dest'");
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cairo_rectangle (cr, 3, 3, 4, 4);
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cairo_stroke (cr);
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cairo_tag_end (cr, CAIRO_TAG_DEST);
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cairo_destroy(cr);
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return recording;
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}
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_surface_t *recording;
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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recording = draw_recording ();
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cairo_set_source_surface (cr, recording, 0, 0);
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cairo_paint (cr);
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cairo_surface_destroy (recording);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (bug_448,
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"Exercises a bug with the tag API",
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"pdf", /* keywords */
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NULL, /* requirements */
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10, 10,
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NULL, draw)
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