summary refs log tree commit diff stats
path: root/results/scraper/launchpad/1353456
diff options
context:
space:
mode:
Diffstat (limited to 'results/scraper/launchpad/1353456')
-rw-r--r--results/scraper/launchpad/135345632
1 files changed, 32 insertions, 0 deletions
diff --git a/results/scraper/launchpad/1353456 b/results/scraper/launchpad/1353456
new file mode 100644
index 00000000..eee439ad
--- /dev/null
+++ b/results/scraper/launchpad/1353456
@@ -0,0 +1,32 @@
+qemu-io: Failure on a qcow2 image with the fuzzed refcount table
+
+'qemu-io -c write' and 'qemu-io -c aio_write' crashes on a qcow2 image with a fuzzed refcount table.
+
+Sequence:
+ 1. Unpack the attached archive, make a copy of test.img
+ 2. Put copy.img and backing_img.file in the same directory
+ 3. Execute
+    qemu-io copy.img -c write 279552 322560
+                      or
+   qemu-io copy.img -c aio_write 836608 166400
+
+Result: qemu-io was killed by SIGIOT with the reason:
+
+qemu-io: block/qcow2-cluster.c:1291: qcow2_alloc_cluster_offset: Assertion `*host_offset != 0' failed.
+
+qemu.git HEAD 69f87f713069f1f
+
+
+
+Hi,
+
+this has been fixed in upstream master (5f77ef69a195098baddfdc6d189f1b4a94587378):
+
+$ ./qemu-io copy.img -c 'aio_write 836608 166400'
+qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with qcow2_header); further corruption events will be suppressed
+aio_write failed: Input/output error
+
+Thanks for your report,
+
+Max
+