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authorMichael Niedermayer <michael@niedermayer.cc>2019-09-25 20:40:55 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2019-09-26 21:02:34 +0200
commitdb614008bc8a0c92897b927ad07fec04af3a4c18 (patch)
treefa2ec8c6987dd7081b17026128b812664c08b8bd /tools
parent581a895c5c8b464a7fc7ebbaa6d9f565c10bae62 (diff)
tools/target_dec_fuzzer: Check number of all samples decoded too, like max pixels
Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'tools')
-rw-r--r--tools/target_dec_fuzzer.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index 0dc1854738..6c670d8eb9 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -94,6 +94,7 @@ const uint64_t maxpixels_per_frame = 4096 * 4096;
uint64_t maxpixels;
const uint64_t maxsamples_per_frame = 256*1024*32;
+uint64_t maxsamples;
static const uint64_t FUZZ_TAG = 0x4741542D5A5A5546ULL;
@@ -103,6 +104,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
const uint8_t *end = data + size;
uint32_t it = 0;
uint64_t ec_pixels = 0;
+ uint64_t nb_samples = 0;
int (*decode_handler)(AVCodecContext *avctx, AVFrame *picture,
int *got_picture_ptr,
const AVPacket *avpkt) = NULL;
@@ -131,6 +133,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
case AVMEDIA_TYPE_SUBTITLE: decode_handler = subtitle_handler ; break;
}
maxpixels = maxpixels_per_frame * maxiteration;
+ maxsamples = maxsamples_per_frame * maxiteration;
switch (c->id) {
// Allows a small input to generate gigantic output
case AV_CODEC_ID_BINKVIDEO: maxpixels /= 32; break;
@@ -269,6 +272,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
if (ec_pixels > maxpixels)
goto maximums_reached;
+ nb_samples += frame->nb_samples;
+ if (nb_samples > maxsamples)
+ goto maximums_reached;
+
if (ret <= 0 || ret > avpkt.size)
break;
if (ctx->codec_type != AVMEDIA_TYPE_AUDIO)