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| 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 /qapi/string-input-visitor.c | |
| parent | 6bf45d59f98c898b7d7997a333765c8ee41236ea (diff) | |
| download | focaccia-qemu-9883975050deffc147a3903d07ff995ecdc8a100.tar.gz focaccia-qemu-9883975050deffc147a3903d07ff995ecdc8a100.zip | |
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 'qapi/string-input-visitor.c')
0 files changed, 0 insertions, 0 deletions