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[Qemu-devel] [PULL 45/93] vmdk: Check for overhead when opening
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 45/93] vmdk: Check for overhead when opening |
Date: |
Fri, 24 Jan 2014 18:21:28 +0100 |
From: Fam Zheng <address@hidden>
Report an error if file size is even smaller than metadata.
Signed-off-by: Fam Zheng <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block/vmdk.c | 7 +++++++
tests/qemu-iotests/059 | 6 ++++++
tests/qemu-iotests/059.out | 5 +++++
3 files changed, 18 insertions(+)
diff --git a/block/vmdk.c b/block/vmdk.c
index 599a928..74c44bd 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -640,6 +640,13 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
if (le32_to_cpu(header.flags) & VMDK4_FLAG_RGD) {
l1_backup_offset = le64_to_cpu(header.rgd_offset) << 9;
}
+ if (bdrv_getlength(file) <
+ le64_to_cpu(header.grain_offset) * BDRV_SECTOR_SIZE) {
+ error_report("File truncated, expecting at least %lld bytes",
+ le64_to_cpu(header.grain_offset) * BDRV_SECTOR_SIZE);
+ return -EINVAL;
+ }
+
ret = vmdk_add_extent(bs, file, false,
le64_to_cpu(header.capacity),
le64_to_cpu(header.gd_offset) << 9,
diff --git a/tests/qemu-iotests/059 b/tests/qemu-iotests/059
index 64ed04c..2d604d3 100755
--- a/tests/qemu-iotests/059
+++ b/tests/qemu-iotests/059
@@ -98,6 +98,12 @@ EOF
_img_info
echo
+echo "=== Testing truncated sparse ==="
+IMGOPTS="subformat=monolithicSparse" _make_test_img 100G
+truncate -s 10M $TEST_IMG
+_img_info
+
+echo
echo "=== Testing version 3 ==="
_use_sample_img iotest-version3.vmdk.bz2
_img_info
diff --git a/tests/qemu-iotests/059.out b/tests/qemu-iotests/059.out
index 5e30e69..4ffeb54 100644
--- a/tests/qemu-iotests/059.out
+++ b/tests/qemu-iotests/059.out
@@ -2043,6 +2043,11 @@ qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Invalid
extent lines:
RW 12582912 VMFS "dummy.IMGFMT" 1
+=== Testing truncated sparse ===
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=107374182400
+qemu-img: File truncated, expecting at least 13172736 bytes
+qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Could not open
'TEST_DIR/t.IMGFMT': Wrong medium type
+
=== Testing version 3 ===
image: TEST_DIR/iotest-version3.IMGFMT
file format: IMGFMT
--
1.8.1.4
- [Qemu-devel] [PULL 33/93] blkverify: Allow command-line configuration, (continued)
- [Qemu-devel] [PULL 33/93] blkverify: Allow command-line configuration, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 36/93] qapi: QMP interface for blkdebug and blkverify, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 37/93] qemu-io: Make filename optional, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 39/93] tests: Add test for qdict_flatten(), Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 40/93] iotests: Test new blkdebug/blkverify interface, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 38/93] tests: Add test for qdict_array_split(), Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 41/93] iotests: Test file format nesting, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 42/93] block: fix backing file segfault, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 43/93] dataplane: fix shadowed return value, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 44/93] qcow2: fix wrong value of L1E_OFFSET_MASK, L2E_OFFSET_MASK and REFT_OFFSET_MASK, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 45/93] vmdk: Check for overhead when opening,
Kevin Wolf <=
- [Qemu-devel] [PULL 46/93] qemu-progress: Drop unused include, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 47/93] qemu-progress: Fix progress printing on SIGUSR1, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 49/93] sheepdog: fix 'qemu-img map', Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 48/93] Documentation: qemu-img: Mention SIGUSR1 progress report, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 51/93] vmdk: Fix format specific information (create type) for streamOptimized, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 50/93] drive mirror:fix memory leak, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 52/93] qapi: Add "backing" to BlockStats, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 54/93] block: Allow the user to define "node-name" option both on command line and QMP., Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 53/93] block: Add bs->node_name to hold the name of a bs node of the bs graph., Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 61/93] block: resize backing file image during offline commit, if necessary, Kevin Wolf, 2014/01/24