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| author | Max Reitz <mreitz@redhat.com> | 2014-04-29 19:03:13 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-04-30 14:46:17 +0200 |
| commit | a49139af77850d64d74f9ffe43cabe7aa4f19de0 (patch) | |
| tree | cdc502c986e95039e30a3c639e24509ccc3bec2e /block/qcow2-refcount.c | |
| parent | 521b2b5df0ccad764cf95164c6e428f855067a6f (diff) | |
| download | qemu-a49139af77850d64d74f9ffe43cabe7aa4f19de0.tar.gz qemu-a49139af77850d64d74f9ffe43cabe7aa4f19de0.tar.bz2 qemu-a49139af77850d64d74f9ffe43cabe7aa4f19de0.zip | |
qcow2: Catch bdrv_getlength() error
The call to bdrv_getlength() from qcow2_check_refcounts() may result in
an error. Check this and abort if necessary.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2-refcount.c')
| -rw-r--r-- | block/qcow2-refcount.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index d2cb6a8775..e79895d11d 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -1487,6 +1487,11 @@ int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res, int ret; size = bdrv_getlength(bs->file); + if (size < 0) { + res->check_errors++; + return size; + } + nb_clusters = size_to_clusters(s, size); if (nb_clusters > INT_MAX) { res->check_errors++; |