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[Qemu-devel] [PATCH v2] ssh: Don't crash if either host or path is not s
From: |
Richard W.M. Jones |
Subject: |
[Qemu-devel] [PATCH v2] ssh: Don't crash if either host or path is not specified. |
Date: |
Mon, 29 Sep 2014 09:06:22 +0100 |
$ ./qemu-img create -f qcow2 overlay \
-b 'json: { "file.driver":"ssh",
"file.host":"localhost",
"file.host_key_check":"no" }'
qemu-img: qobject/qdict.c:193: qdict_get_obj: Assertion `obj != ((void *)0)'
failed.
Aborted
A similar crash also happens if the file.host field is omitted.
https://bugzilla.redhat.com/show_bug.cgi?id=1147343
Bug found and reported by Jun Li.
Signed-off-by: Richard W.M. Jones <address@hidden>
---
block/ssh.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/block/ssh.c b/block/ssh.c
index cd2fd75..35f143d 100644
--- a/block/ssh.c
+++ b/block/ssh.c
@@ -517,6 +517,11 @@ static int connect_to_ssh(BDRVSSHState *s, QDict *options,
const char *host, *user, *path, *host_key_check;
int port;
+ if (!qdict_haskey(options, "host")) {
+ ret = -EINVAL;
+ error_setg(errp, "No hostname was specified");
+ goto err;
+ }
host = qdict_get_str(options, "host");
if (qdict_haskey(options, "port")) {
@@ -525,6 +530,11 @@ static int connect_to_ssh(BDRVSSHState *s, QDict *options,
port = 22;
}
+ if (!qdict_haskey(options, "path")) {
+ ret = -EINVAL;
+ error_setg(errp, "No path was specified");
+ goto err;
+ }
path = qdict_get_str(options, "path");
if (qdict_haskey(options, "user")) {
--
2.0.4
- [Qemu-devel] [PATCH v2] ssh: Don't crash if either host or path is not specified.,
Richard W.M. Jones <=