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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2018-07-05 18:15:15 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2018-07-09 19:43:24 +0200 |
| commit | 0e4e4318eaa56c831001bdf617094807ec6d451c (patch) | |
| tree | 9f73d96a1eb30f2177993056bc998a812a141a35 /block/qcow2-refcount.c | |
| parent | 85456e0d16434ffe5b33f1354cd893180f2fb235 (diff) | |
| download | qemu-0e4e4318eaa56c831001bdf617094807ec6d451c.zip qemu-0e4e4318eaa56c831001bdf617094807ec6d451c.tar.gz qemu-0e4e4318eaa56c831001bdf617094807ec6d451c.tar.bz2 | |
qcow2: add overlap check for bitmap directory
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20180705151515.779173-1-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/qcow2-refcount.c')
| -rw-r--r-- | block/qcow2-refcount.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 18c729a..1b9ecb1 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -2705,6 +2705,16 @@ int qcow2_check_metadata_overlap(BlockDriverState *bs, int ign, int64_t offset, } } + if ((chk & QCOW2_OL_BITMAP_DIRECTORY) && + (s->autoclear_features & QCOW2_AUTOCLEAR_BITMAPS)) + { + if (overlaps_with(s->bitmap_directory_offset, + s->bitmap_directory_size)) + { + return QCOW2_OL_BITMAP_DIRECTORY; + } + } + return 0; } |