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avfilter/af_compand: Check av_strtok() for failure

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Fixes CID1396256

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-04-20 02:19:21 +02:00
parent 164758a831
commit 88612f8db3
1 changed files with 9 additions and 1 deletions
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10
libavfilter/af_compand.c
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@ -368,6 +368,10 @@ static int config_output(AVFilterLink *outlink)
p = s->attacks;
for (i = 0, new_nb_items = 0; i < nb_attacks; i++) {
char *tstr = av_strtok(p, " |", &saveptr);
if (!tstr) {
uninit(ctx);
return AVERROR(EINVAL);
}
p = NULL;
new_nb_items += sscanf(tstr, "%lf", &s->channels[i].attack) == 1;
if (s->channels[i].attack < 0) {
@ -380,6 +384,10 @@ static int config_output(AVFilterLink *outlink)
p = s->decays;
for (i = 0, new_nb_items = 0; i < nb_decays; i++) {
char *tstr = av_strtok(p, " |", &saveptr);
if (!tstr) {
uninit(ctx);
return AVERROR(EINVAL);
}
p = NULL;
new_nb_items += sscanf(tstr, "%lf", &s->channels[i].decay) == 1;
if (s->channels[i].decay < 0) {
@ -407,7 +415,7 @@ static int config_output(AVFilterLink *outlink)
for (i = 0, new_nb_items = 0; i < nb_points; i++) {
char *tstr = av_strtok(p, " |", &saveptr);
p = NULL;
if (sscanf(tstr, "%lf/%lf", &S(i).x, &S(i).y) != 2) {
if (!tstr || sscanf(tstr, "%lf/%lf", &S(i).x, &S(i).y) != 2) {
av_log(ctx, AV_LOG_ERROR,
"Invalid and/or missing input/output value.\n");
uninit(ctx);