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A kernel-infoleak was reported by syzbot, which was caused because dbells was left uninitialized. Using kzalloc() instead of kmalloc() fixes this issue. Reported-by: syzbot+a79e17c39564bedf0930@syzkaller.appspotmail.com Tested-by: syzbot+a79e17c39564bedf0930@syzkaller.appspotmail.com Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com> Link: https://lore.kernel.org/r/20201122224534.333471-1-anant.thazhemadam@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>