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-rw-r--r--tests/qemu-iotests/049.out10
-rw-r--r--util/qemu-option.c5
2 files changed, 9 insertions, 6 deletions
diff --git a/tests/qemu-iotests/049.out b/tests/qemu-iotests/049.out
index 9f93666c5b..8884543db9 100644
--- a/tests/qemu-iotests/049.out
+++ b/tests/qemu-iotests/049.out
@@ -95,17 +95,15 @@ qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- -1024
qemu-img: Image size must be less than 8 EiB!
qemu-img create -f qcow2 -o size=-1024 TEST_DIR/t.qcow2
-qemu-img: qcow2 doesn't support shrinking images yet
-qemu-img: TEST_DIR/t.qcow2: Could not resize image: Operation not supported
-Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=-1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
+qemu-img: Parameter 'size' expects a non-negative number below 2^64
+qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2'
qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- -1k
qemu-img: Image size must be less than 8 EiB!
qemu-img create -f qcow2 -o size=-1k TEST_DIR/t.qcow2
-qemu-img: qcow2 doesn't support shrinking images yet
-qemu-img: TEST_DIR/t.qcow2: Could not resize image: Operation not supported
-Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=-1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
+qemu-img: Parameter 'size' expects a non-negative number below 2^64
+qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2'
qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- 1kilobyte
qemu-img: Invalid image size specified! You may use k, M, G, T, P or E suffixes for
diff --git a/util/qemu-option.c b/util/qemu-option.c
index efe9d279c4..efd6f024e7 100644
--- a/util/qemu-option.c
+++ b/util/qemu-option.c
@@ -180,6 +180,11 @@ void parse_option_size(const char *name, const char *value,
if (value != NULL) {
sizef = strtod(value, &postfix);
+ if (sizef < 0 || sizef > UINT64_MAX) {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name,
+ "a non-negative number below 2^64");
+ return;
+ }
switch (*postfix) {
case 'T':
sizef *= 1024;