PR #21750 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21750 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21750.patch
Fixes: left shift of 255 by 24 places cannot be represented in type 'int' Fixes: 471591904/clusterfuzz-testcase-minimized-ffmpeg_SWS_fuzzer-5141341165387776 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> >From 0939c34f0df3a3886974be3c186ddbe853f52bd9 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer <[email protected]> Date: Fri, 13 Feb 2026 23:40:38 +0100 Subject: [PATCH] swscale/rgb2rgb_template: fix signed shift into sign bit Fixes: left shift of 255 by 24 places cannot be represented in type 'int' Fixes: 471591904/clusterfuzz-testcase-minimized-ffmpeg_SWS_fuzzer-5141341165387776 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> --- libswscale/rgb2rgb_template.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libswscale/rgb2rgb_template.c b/libswscale/rgb2rgb_template.c index 47a1bb8368..7d4a605043 100644 --- a/libswscale/rgb2rgb_template.c +++ b/libswscale/rgb2rgb_template.c @@ -470,11 +470,11 @@ static inline void yuvPlanartouyvy_c(const uint8_t *ysrc, const uint8_t *usrc, for (i = 0; i < chromWidth; i++) { #if HAVE_BIGENDIAN - *idst++ = (uc[0] << 24) + (yc[0] << 16) + + *idst++ = ((unsigned)uc[0] << 24) + (yc[0] << 16) + (vc[0] << 8) + (yc[1] << 0); #else *idst++ = uc[0] + (yc[0] << 8) + - (vc[0] << 16) + (yc[1] << 24); + (vc[0] << 16) + ((unsigned)yc[1] << 24); #endif yc += 2; uc++; -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
