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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-06-23 14:45:47 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-06-23 15:04:07 +0200 |
| commit | 61796a8999f5ef39cd4f5aa81bfd7d3f62dc17f2 (patch) | |
| tree | d6de103e0155ccafb33edd8f1672c355e741fd42 /libavutil/lzo.c | |
| parent | 7d9c059a3525aa9f3e257b4c13df2b8c30409f3c (diff) | |
| download | ffmpeg-61796a8999f5ef39cd4f5aa81bfd7d3f62dc17f2.tar.gz | |
avutil/lzo: add asserts to be double sure against overflows
These asserts cannot fail since d6af26c55c1ea30f85a7d9edbc373f53be1743ee
Based-on: ccda51b14c0fcae2fad73a24872dce75a7964996
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cf2b7c01f81c1fb3283a1390c0ca9a2f81f4f4a8)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/lzo.c')
| -rw-r--r-- | libavutil/lzo.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavutil/lzo.c b/libavutil/lzo.c index 82dba94771..6104fc3085 100644 --- a/libavutil/lzo.c +++ b/libavutil/lzo.c @@ -22,6 +22,7 @@ #include <string.h> #include "avutil.h" +#include "avassert.h" #include "common.h" #include "intreadwrite.h" #include "lzo.h" @@ -85,6 +86,7 @@ static inline void copy(LZOContext *c, int cnt) { register const uint8_t *src = c->in; register uint8_t *dst = c->out; + av_assert0(cnt >= 0); if (cnt > c->in_end - src) { cnt = FFMAX(c->in_end - src, 0); c->error |= AV_LZO_INPUT_DEPLETED; @@ -116,6 +118,7 @@ static inline void copy(LZOContext *c, int cnt) static inline void copy_backptr(LZOContext *c, int back, int cnt) { register uint8_t *dst = c->out; + av_assert0(cnt > 0); if (dst - c->out_start < back) { c->error |= AV_LZO_INVALID_BACKPTR; return; |