diff options
| -rw-r--r-- | block/vvfat.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/vvfat.c b/block/vvfat.c index 75d0dc07e0..9f851b09de 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -1245,7 +1245,7 @@ static int vvfat_read(BlockDriverState *bs, int64_t sector_num, int i; for(i=0;i<nb_sectors;i++,sector_num++) { - if (sector_num >= s->sector_count) + if (sector_num >= bs->total_sectors) return -1; if (s->qcow) { int n; @@ -1271,7 +1271,7 @@ DLOG(fprintf(stderr, "sector %d not allocated\n", (int)sector_num)); uint32_t sector=sector_num-s->faked_sectors, sector_offset_in_cluster=(sector%s->sectors_per_cluster), cluster_num=sector/s->sectors_per_cluster; - if(read_cluster(s, cluster_num) != 0) { + if(cluster_num > s->cluster_count || read_cluster(s, cluster_num) != 0) { /* LATER TODO: strict: return -1; */ memset(buf+i*0x200,0,0x200); continue; |