Bug 2426251 (CVE-2022-50810) - CVE-2022-50810 kernel: rapidio: devices: fix missing put_device in mport_cdev_open
Summary: CVE-2022-50810 kernel: rapidio: devices: fix missing put_device in mport_cdev...
Keywords:
Status: NEW
Alias: CVE-2022-50810
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-30 13:19 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:34 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-12-30 13:19:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

rapidio: devices: fix missing put_device in mport_cdev_open

When kfifo_alloc fails, the refcount of chdev->dev is left incremental. 
We should use put_device(&chdev->dev) to decrease the ref count of
chdev->dev to avoid refcount leak.
Comment 1 Alexander B 2025-12-30 22:03:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123013-CVE-2022-50810-1d1c@gregkh/T
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