diff mbox series

[FFmpeg-devel,1/2] swscale/utils: Allocate more dithererror

Message ID 20240217170947.25351-1-michael@niedermayer.cc
State Accepted
Commit 18f26f8a2f8dc3b9ec3ac3ab8e03fce15cc8c88d
Headers show
Series [FFmpeg-devel,1/2] swscale/utils: Allocate more dithererror | expand

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Commit Message

Michael Niedermayer Feb. 17, 2024, 5:09 p.m. UTC 
Fixes: out of array read
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libswscale/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Michael Niedermayer Feb. 21, 2024, 5:29 p.m. UTC | #1 
On Sat, Feb 17, 2024 at 06:09:46PM +0100, Michael Niedermayer wrote:
> Fixes: out of array read
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  libswscale/utils.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply patchset

[...]
diff mbox series

Patch

diff --git a/libswscale/utils.c b/libswscale/utils.c
index ec822ff5d92..4dc0fbfefbf 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -1885,7 +1885,7 @@  static av_cold int sws_init_single_context(SwsContext *c, SwsFilter *srcFilter,
     }
 
     for (i = 0; i < 4; i++)
-        if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], c->dstW + 2))
+        if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], c->dstW + 3))
             goto nomem;
 
     c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) ? 1 : 0;