In the Linux kernel, the following vulnerability has been resolved: block: don't use submitbionoacctnocheck in blkzonewplugbiowork Bios queued up in the zone write plug have already gone through all all preparation in the submitbio path, including the freeze protection. Submitting them through submitbionoacctnocheck duplicates the work and can can cause deadlocks when freezing a queue with pending bio write plugs. Go straight to ->submitbio or blkmqsubmit_bio to bypass the superfluous extra freeze protection and checks.