CVE-2025-38302

Published: July 12, 2025Last modified: July 12, 2025

Description

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

Status

References

• https://git.kernel.org/stable/c/0fccb6773b1f4f992e435582cf8e050de421b678
• https://git.kernel.org/stable/c/6ffae5d53f704d300cc73b06b4ea99e4507f7cf1
• https://git.kernel.org/stable/c/cf625013d8741c01407bbb4a60c111b61b9fa69d