Bug 2406745 (CVE-2025-40055)

Summary: CVE-2025-40055 kernel: ocfs2: fix double free in user_cluster_connect()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-28 12:03:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ocfs2: fix double free in user_cluster_connect()

user_cluster_disconnect() frees "conn->cc_private" which is "lc" but then
the error handling frees "lc" a second time.  Set "lc" to NULL on this
path to avoid a double free.
Comment 1 Jon Moroney 2025-10-28 18:54:13 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025102815-CVE-2025-40055-8290@gregkh/T