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| author | David Woodhouse <dwmw2@infradead.org> | 2009-11-07 14:10:01 +0000 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-11-12 11:23:56 -0600 |
| commit | c34d2451ed32651e14e309f94009be07d231ee96 (patch) | |
| tree | e33834dcbe3b1bd1f2fd6990a2da76882ef6173e /block/parallels.c | |
| parent | 812151f290e35995fb00c33b51048c09faec58a0 (diff) | |
| download | qemu-c34d2451ed32651e14e309f94009be07d231ee96.zip | |
Fix 32-bit overflow in parallels image support
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'block/parallels.c')
| -rw-r--r-- | block/parallels.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/block/parallels.c b/block/parallels.c index 0b64a5c625..63b67380ad 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -119,7 +119,8 @@ fail: static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num) { BDRVParallelsState *s = bs->opaque; - uint32_t index, offset, position; + uint32_t index, offset; + uint64_t position; index = sector_num / s->tracks; offset = sector_num % s->tracks; @@ -128,7 +129,7 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num) if ((index > s->catalog_size) || (s->catalog_bitmap[index] == 0)) return -1; - position = (s->catalog_bitmap[index] + offset) * 512; + position = (uint64_t)(s->catalog_bitmap[index] + offset) * 512; // fprintf(stderr, "sector: %llx index=%x offset=%x pointer=%x position=%x\n", // sector_num, index, offset, s->catalog_bitmap[index], position); |