Bug 2406745 (CVE-2025-40055) - CVE-2025-40055 kernel: ocfs2: fix double free in user_cluster_connect()
Summary: CVE-2025-40055 kernel: ocfs2: fix double free in user_cluster_connect()
Keywords:
Status: NEW
Alias: CVE-2025-40055
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-28 12:03 UTC by OSIDB Bzimport
Modified: 2025-11-26 13:13 UTC (History)
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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
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