CVE-2021-47425
i2c: acpi: fix resource leak in reconfiguration device addition
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Description
In the Linux kernel, the following vulnerability has been resolved: i2c: acpi: fix resource leak in reconfiguration device addition acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a reference on the adapter which is never released which will result in a reference count leak and render the adapter unremovable. Make sure to put the adapter after creating the client in the same manner that we do for OF. [wsa: fixed title]
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/3d9d458a8aaafa47268ea4f1b4114a9f12927989
- https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b
- https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f
- https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694
- https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63
References (6)
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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