[Qemu-devel] [PATCH] raw: Fix segfault in raw_create when opts is NULL

[Fam Zheng]

Reported-by: Milos Vyletel <address@hidden>
Signed-off-by: Fam Zheng <address@hidden>
---
 block/raw-posix.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/block/raw-posix.c b/block/raw-posix.c
index dacf4fb..1f45fd8 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -1282,8 +1282,10 @@ static int raw_create(const char *filename, QemuOpts 
*opts, Error **errp)
     strstart(filename, "file:", &filename);
 
     /* Read out options */
-    total_size =
-        qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0) / BDRV_SECTOR_SIZE;
+    if (opts) {
+        total_size =
+            qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0) / BDRV_SECTOR_SIZE;
+    }
 
     fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
                    0644);
-- 
2.0.0