Bug 2420289 (CVE-2022-50643)

Summary: CVE-2022-50643 kernel: cifs: Fix xid leak in cifs_copy_file_range()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-12-09 01:06:12 UTC 
In the Linux kernel, the following vulnerability has been resolved:

cifs: Fix xid leak in cifs_copy_file_range()

If the file is used by swap, before return -EOPNOTSUPP, should
free the xid, otherwise, the xid will be leaked.
Comment 1 Alexander B 2025-12-10 03:55:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120936-CVE-2022-50643-74ca@gregkh/T