Bug 2376055 (CVE-2025-38101)

Summary: CVE-2025-38101 kernel: ring-buffer: Fix buffer locking in ring_buffer_subbuf_order_set()
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: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-07-03 09:02:39 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ring-buffer: Fix buffer locking in ring_buffer_subbuf_order_set()

Enlarge the critical section in ring_buffer_subbuf_order_set() to
ensure that error handling takes place with per-buffer mutex held,
thus preventing list corruption and other concurrency-related issues.
Comment 1 Avinash Hanwate 2025-07-03 18:24:28 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025070321-CVE-2025-38101-56c1@gregkh/T