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avformat/aiffdec: avoid integer overflow in get_meta() 

Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 45891/clusterfuzz-testcase-minimized-ffmpeg_dem_AIFF_fuzzer-6159183893889024

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6a02de2127)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-03-23 01:08:56 +01:00
parent b928cd3bda
commit 4aeea332eb
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1 changed files with 1 additions and 1 deletions
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libavformat/aiffdec.c
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@ -73,7 +73,7 @@ static int get_tag(AVIOContext *pb, uint32_t * tag)
/* Metadata string read */
static void get_meta(AVFormatContext *s, const char *key, int size)
{
uint8_t *str = av_malloc(size+1);
uint8_t *str = av_malloc(size+1U);
if (str) {
int res = avio_read(s->pb, str, size);