If llistxattr returned 0, qemu aborts.
Signed-off-by: Kusanagi Kouichi <[email protected]>
---
hw/virtio-9p-xattr.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/hw/virtio-9p-xattr.c b/hw/virtio-9p-xattr.c
index 175f372..1aab081 100644
--- a/hw/virtio-9p-xattr.c
+++ b/hw/virtio-9p-xattr.c
@@ -73,6 +73,9 @@ ssize_t v9fs_list_xattr(FsContext *ctx, const char *path,
/* Get the actual len */
xattr_len = llistxattr(rpath(ctx, path), value, 0);
+ if (xattr_len <= 0) {
+ return xattr_len;
+ }
/* Now fetch the xattr and find the actual size */
orig_value = qemu_malloc(xattr_len);
--
1.7.2.3
