CVE-2022-49367
net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register
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Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/02ded5a173619b11728b8bf75a3fd995a2c1ff28
- https://git.kernel.org/stable/c/42658e47f1abbbe592007d3ba303de466114d0bb
- https://git.kernel.org/stable/c/86c3c5f8e4bd1325e24f6fba9017cade29933377
- https://git.kernel.org/stable/c/8a1a1255152da4fb934290e7ababc66f24985520
- https://git.kernel.org/stable/c/a101793994c0a14c70bb4e44c7fda597eeebba0a
References (8)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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