From: Gerd Hoffmann <kra...@redhat.com>
In case s->version is shorter than 4 bytes we overflow the memcpy src
buffer. Fix it by clearing the target buffer, then copy only the
amount of bytes we actually have.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Anthony Liguori <aligu...@us.ibm.com>
(cherry picked from 314b1811c15f4e982e4667d9b845aee4b5a63d91)
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
hw/scsi-disk.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index b34fbaa..a792012 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -434,7 +434,9 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req,
uint8_t *outbuf)
memcpy(&outbuf[16], "QEMU HARDDISK ", 16);
}
memcpy(&outbuf[8], "QEMU ", 8);
- memcpy(&outbuf[32], s->version ? s->version : QEMU_VERSION, 4);
+ memset(&outbuf[32], 0, 4);
+ memcpy(&outbuf[32], s->version ? s->version : QEMU_VERSION,
+ MIN(4, strlen(s->version ? s->version : QEMU_VERSION)));
/* Identify device as SCSI-3 rev 1.
Some later commands are also implemented. */
outbuf[2] = 3;
--
1.6.6.1
