From: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
As the IDEState lba field is an int32_t, make sure we cast to int64_t before
shifting to calculate the offset. Otherwise we end up with an overflow when
trying to access sectors beyond 2GB as can occur when using DVD images.
[Maintainer edit: fixed extraneous parentheses. --js]
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
Reviewed-by: John Snow <js...@redhat.com>
Message-id: 1451928613-29476-1-git-send-email-mark.cave-ayl...@ilande.co.uk
Signed-off-by: John Snow <js...@redhat.com>
---
hw/ide/macio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/ide/macio.c b/hw/ide/macio.c
index 3ee962f..1678b2f 100644
--- a/hw/ide/macio.c
+++ b/hw/ide/macio.c
@@ -280,7 +280,7 @@ static void pmac_ide_atapi_transfer_cb(void *opaque, int
ret)
}
/* Calculate current offset */
- offset = (int64_t)(s->lba << 11) + s->io_buffer_index;
+ offset = ((int64_t)s->lba << 11) + s->io_buffer_index;
pmac_dma_read(s->blk, offset, io->len, pmac_ide_atapi_transfer_cb, io);
return;
--
2.4.3
