git.videolan.org
/
ffmpeg.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
c996374
)
avcodec/jpeg2000dwt: Fix runtime error: left shift of negative value -123
author
Michael Niedermayer
<michael@niedermayer.cc>
Sun, 11 Jun 2017 18:28:46 +0000
(20:28 +0200)
committer
Michael Niedermayer
<michael@niedermayer.cc>
Sun, 11 Jun 2017 18:52:47 +0000
(20:52 +0200)
Fixes: 2208/clusterfuzz-testcase-minimized-
5976593765761024
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/jpeg2000dwt.c
patch
|
blob
|
history
diff --git
a/libavcodec/jpeg2000dwt.c
b/libavcodec/jpeg2000dwt.c
index
188cc26
..
735ed0b
100644
(file)
--- a/
libavcodec/jpeg2000dwt.c
+++ b/
libavcodec/jpeg2000dwt.c
@@
-488,7
+488,7
@@
static void dwt_decode97_int(DWTContext *s, int32_t *t)
line += 5;
for (i = 0; i < w * h; i++)
- data[i]
<<=
I_PRESHIFT;
+ data[i]
*= 1 <<
I_PRESHIFT;
for (lev = 0; lev < s->ndeclevels; lev++) {
int lh = s->linelen[lev][0],