From: Li Qiang <liqiang...@360.cn> 9pfs uses g_malloc() to allocate the xattr memory space, if the guest reads this memory before writing to it, this will leak host heap memory to the guest. This patch avoid this.
Signed-off-by: Li Qiang <liqiang...@360.cn> --- hw/9pfs/9p.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index 119ee58..8751c19 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -3282,7 +3282,7 @@ static void v9fs_xattrcreate(void *opaque) xattr_fidp->fs.xattr.flags = flags; v9fs_string_init(&xattr_fidp->fs.xattr.name); v9fs_string_copy(&xattr_fidp->fs.xattr.name, &name); - xattr_fidp->fs.xattr.value = g_malloc(size); + xattr_fidp->fs.xattr.value = g_malloc0(size); err = offset; put_fid(pdu, file_fidp); out_nofid: -- 1.8.3.1