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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-07-15 19:20:19 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-08-20 14:38:27 +0200 |
| commit | 3bc20fe48c5e374d92948e39a09d28332c339e0e (patch) | |
| tree | 18198c94a3effbe55455f76931dfa8caa2bbce99 | |
| parent | 7a7ec3ccd9b63e898bb9bafe31ff2475c47cd210 (diff) | |
| download | ffmpeg-3bc20fe48c5e374d92948e39a09d28332c339e0e.tar.gz | |
swscale/utils: Clear pix buffers
Fixes use of uninitialized memory
Fixes: a96874b9466b6edc660a519c7ad47977_signal_sigsegv_7ffff713351a_744_nc_sample.avi with memlimit 2147483648
Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a5d44d5c220e12ca0cb7a4eceb0f74759cb13111)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libswscale/utils.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c index 98a9e4d380..84c58ca5f5 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -1421,9 +1421,9 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter, /* Allocate pixbufs (we use dynamic allocation because otherwise we would * need to allocate several megabytes to handle all possible cases) */ - FF_ALLOC_OR_GOTO(c, c->lumPixBuf, c->vLumBufSize * 3 * sizeof(int16_t *), fail); - FF_ALLOC_OR_GOTO(c, c->chrUPixBuf, c->vChrBufSize * 3 * sizeof(int16_t *), fail); - FF_ALLOC_OR_GOTO(c, c->chrVPixBuf, c->vChrBufSize * 3 * sizeof(int16_t *), fail); + FF_ALLOCZ_OR_GOTO(c, c->lumPixBuf, c->vLumBufSize * 3 * sizeof(int16_t *), fail); + FF_ALLOCZ_OR_GOTO(c, c->chrUPixBuf, c->vChrBufSize * 3 * sizeof(int16_t *), fail); + FF_ALLOCZ_OR_GOTO(c, c->chrVPixBuf, c->vChrBufSize * 3 * sizeof(int16_t *), fail); if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf, c->vLumBufSize * 3 * sizeof(int16_t *), fail); /* Note we need at least one pixel more at the end because of the MMX code |