diff options
| -rw-r--r-- | tools/target_dem_fuzzer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/target_dem_fuzzer.c b/tools/target_dem_fuzzer.c index 6f4f062f13..e4f41765d6 100644 --- a/tools/target_dem_fuzzer.c +++ b/tools/target_dem_fuzzer.c @@ -49,6 +49,8 @@ static int io_read(void *opaque, uint8_t *buf, int buf_size) c->filesize = FFMIN(c->pos, c->filesize); return AVERROR_EOF; } + if (c->pos > INT64_MAX - size) + return AVERROR(EIO); memcpy(buf, c->fuzz, size); c->fuzz += size; |