Bug 2347986 (CVE-2022-49367) - CVE-2022-49367 kernel: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register
Summary: CVE-2022-49367 kernel: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_md...
Keywords:
Status: NEW
Alias: CVE-2022-49367
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:13 UTC by OSIDB Bzimport
Modified: 2025-05-16 13:59 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2025-02-26 03:13:41 UTC
In the Linux kernel, the following vulnerability has been resolved:

net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register

of_get_child_by_name() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.

mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register().
We don't need the device node after it.

Add missing of_node_put() to avoid refcount leak.

Comment 1 Avinash Hanwate 2025-02-26 20:41:48 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022645-CVE-2022-49367-3b2e@gregkh/T


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