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block/vdi: When writing new bmap entry fails, don't leak the buffer 

If a new bitmap entry is allocated, requiring the entire block to be
written, avoiding leaking the buffer allocated for the block should
the write fail.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Max Reitz <mreitz@redhat.com>
Message-id: 20210325112941.365238-2-pbonzini@redhat.com
Message-Id: <20210309144015.557477-2-david.edmondson@oracle.com>
Acked-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
master
David Edmondson 2021-03-25 12:29:36 +01:00 committed by Stefan Hajnoczi
parent 6d40ce00c1
commit 574b8304cf
1 changed files with 1 additions and 0 deletions
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block/vdi.c
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@ -690,6 +690,7 @@ nonallocating_write:
logout("finished data write\n");
if (ret < 0) {
g_free(block);
return ret;
}