diff options
| author | Alberto Garcia <berto@igalia.com> | 2017-11-03 16:18:51 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-11-14 18:06:25 +0100 |
| commit | 9883975050deffc147a3903d07ff995ecdc8a100 (patch) | |
| tree | 9e1257d6dccbbf925a35ede332beeb3234dd94b9 /block/curl.c | |
| parent | 6bf45d59f98c898b7d7997a333765c8ee41236ea (diff) | |
qcow2: Prevent allocating L2 tables at offset 0
If the refcount data is corrupted then we can end up trying to
allocate a new L2 table at offset 0 in the image, triggering an
assertion in the qcow2 cache that would crash QEMU:
qcow2_cache_entry_mark_dirty: Assertion `c->entries[i].offset != 0' failed
This patch adds an explicit check for this scenario and a new test
case.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 92dac37191ae7844a2da22c122204eb493cc3133.1509718618.git.berto@igalia.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/curl.c')
0 files changed, 0 insertions, 0 deletions