- Vulnerability/
- CVE-2021-47425
CVE-2021-47425: i2c: acpi: fix resource leak in reconfiguration device addition
First published: Tue May 21 2024(Updated: )
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]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel |
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Reference Links
- https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63
- https://git.kernel.org/stable/c/3d9d458a8aaafa47268ea4f1b4114a9f12927989
- https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b
- https://git.kernel.org/stable/c/f86de018fd7a24ee07372d55ffa7824f0c674a95
- https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694
- https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f
Frequently Asked Questions
What is the severity of CVE-2021-47425?
CVE-2021-47425 is categorized with a medium severity rating due to the resource leak in the Linux kernel.
How do I fix CVE-2021-47425?
To fix CVE-2021-47425, upgrade to the latest version of the Linux kernel where the vulnerability has been addressed.
What software versions are affected by CVE-2021-47425?
CVE-2021-47425 affects various versions of the Linux kernel that include the i2c ACPI subsystem.
What type of vulnerability is CVE-2021-47425?
CVE-2021-47425 is a resource leak vulnerability that occurs within the Linux kernel's i2c subsystem.
Can CVE-2021-47425 be exploited remotely?
CVE-2021-47425 does not appear to be remotely exploitable as it requires local access to the system.
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