31 lines
829 B
Diff
31 lines
829 B
Diff
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From 636be06fa7f0cd2ee4d79c8e891b3bcbce331d7b Mon Sep 17 00:00:00 2001
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From: Ozkan Sezer <sezeroz@gmail.com>
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Date: Tue, 30 Jul 2019 21:30:24 +0300
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Subject: [PATCH] Fixed bug 4538 - validate image size when loading BMP files
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--HG--
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branch : SDL-1.2
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---
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src/video/SDL_bmp.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/src/video/SDL_bmp.c b/src/video/SDL_bmp.c
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index 758d4bb..6cadc8a 100644
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--- a/src/video/SDL_bmp.c
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+++ b/src/video/SDL_bmp.c
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@@ -143,6 +143,11 @@ SDL_Surface * SDL_LoadBMP_RW (SDL_RWops *src, int freesrc)
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(void) biYPelsPerMeter;
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(void) biClrImportant;
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+ if (biWidth <= 0 || biHeight == 0) {
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+ SDL_SetError("BMP file with bad dimensions (%dx%d)", biWidth, biHeight);
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+ was_error = SDL_TRUE;
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+ goto done;
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+ }
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if (biHeight < 0) {
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topDown = SDL_TRUE;
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biHeight = -biHeight;
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--
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1.8.3.1
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