diff options
| author | Max Reitz <mreitz@redhat.com> | 2020-07-10 11:50:37 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2020-07-27 12:37:25 +0200 |
| commit | 984c36781404592a6fbaa31ec6d25d6b8f933489 (patch) | |
| tree | 5fc87fbd8fa35be5b2492852e33890d349ffc2dc /block/amend.c | |
| parent | 4215d3413272ad6d1c6c9d0234450b602e46a74c (diff) | |
| download | qemu-984c36781404592a6fbaa31ec6d25d6b8f933489.zip | |
block/amend: Check whether the node exists
We should check whether the user-specified node-name actually refers to
a node. The simplest way to do that is to use bdrv_lookup_bs() instead
of bdrv_find_node() (the former wraps the latter, and produces an error
message if necessary).
Reported-by: Coverity (CID 1430268)
Fixes: ced914d0ab9fb2c900f873f6349a0b8eecd1fdbe
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200710095037.10885-1-mreitz@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Diffstat (limited to 'block/amend.c')
| -rw-r--r-- | block/amend.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/block/amend.c b/block/amend.c index f4612dcf08..392df9ef83 100644 --- a/block/amend.c +++ b/block/amend.c @@ -69,8 +69,12 @@ void qmp_x_blockdev_amend(const char *job_id, BlockdevAmendJob *s; const char *fmt = BlockdevDriver_str(options->driver); BlockDriver *drv = bdrv_find_format(fmt); - BlockDriverState *bs = bdrv_find_node(node_name); + BlockDriverState *bs; + bs = bdrv_lookup_bs(NULL, node_name, errp); + if (!bs) { + return; + } if (!drv) { error_setg(errp, "Block driver '%s' not found or not supported", fmt); |