vulnerability

Red Hat: CVE-2025-38302: kernel: block: don't use submit_bio_noacct_nocheck in blk_zone_wplug_bio_work

Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
Jul 10, 2025
Added
Jul 14, 2025
Modified
Jul 15, 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.

Solution

no-fix-redhat-rpm-package
Title
NEW

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