breeze/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2026-02-04 14:30:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

swscale/output: Fix integer overflow in yuv2ya16_X_c_template()

Browse Source 
Found-by: colod colod <colodcolod7@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0c6b7f9483)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2025-10-13 14:32:45 +02:00
parent a6ac0c6841
commit 19877054e3
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libswscale/output.c
View File

@@ -965,7 +965,7 @@ yuv2ya16_X_c_template(SwsContext *c, const int16_t *lumFilter,
int A = 0xffff;
for (j = 0; j < lumFilterSize; j++)
Y += lumSrc[j][i] * lumFilter[j];
Y += lumSrc[j][i] * (unsigned)lumFilter[j];
Y >>= 15;
Y += (1<<3) + 0x8000;
@@ -974,7 +974,7 @@ yuv2ya16_X_c_template(SwsContext *c, const int16_t *lumFilter,
if (hasAlpha) {
A = -0x40000000 + (1<<14);
for (j = 0; j < lumFilterSize; j++)
A += alpSrc[j][i] * lumFilter[j];
A += alpSrc[j][i] * (unsigned)lumFilter[j];
A >>= 15;
A += 0x8000;