Commit a49139af authored by Max Reitz's avatar Max Reitz Committed by Kevin Wolf
Browse files

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: default avatarMax Reitz <mreitz@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 521b2b5d

block/qcow2-refcount.c

+5 −0
Original line number Diff line number Diff line
@@ -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++;