Bug 2367614 (CVE-2025-37980)

Summary: CVE-2025-37980 kernel: block: fix resource leak in blk_register_queue() error path
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-20 18:01:52 UTC 
In the Linux kernel, the following vulnerability has been resolved:

block: fix resource leak in blk_register_queue() error path

When registering a queue fails after blk_mq_sysfs_register() is
successful but the function later encounters an error, we need
to clean up the blk_mq_sysfs resources.

Add the missing blk_mq_sysfs_unregister() call in the error path
to properly clean up these resources and prevent a memory leak.
Comment 1 Avinash Hanwate 2025-05-21 04:49:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052040-CVE-2025-37980-561f@gregkh/T