CVE-2022-49370: firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add() If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix this issue by calling kobject_put().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=2.6.39<4.9.318 | |
| Linux Kernel | >=4.10<4.14.283 | |
| Linux Kernel | >=4.15<4.19.247 | |
| Linux Kernel | >=4.20<5.4.198 | |
| Linux Kernel | >=5.5<5.10.122 | |
| Linux Kernel | >=5.11<5.15.47 | |
| Linux Kernel | >=5.16<5.17.15 | |
| Linux Kernel | >=5.18<5.18.4 |
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Reference Links
- https://git.kernel.org/stable/c/a9bfb37d6ba7c376b0d53337a4c5f5ff324bd725
- https://git.kernel.org/stable/c/ed38d04342dfbe9e5aca745c8b5eb4188a74f0ef
- https://git.kernel.org/stable/c/c66cc3c62870a27ea8f060a7e4c1ad8d26dd3f0d
- https://git.kernel.org/stable/c/a724634b2a49f6ff0177a9e19a5a92fc1545e1b7
- https://git.kernel.org/stable/c/985706bd3bbeffc8737bc05965ca8d24837bc7db
- https://git.kernel.org/stable/c/fdffa4ad8f6bf1ece877edfb807f2b2c729d8578
- https://git.kernel.org/stable/c/3ba359ebe914ac3f8c6c832b28007c14c39d3766
- https://git.kernel.org/stable/c/ec752973aa721ee281d5441e497364637c626c7b
- https://git.kernel.org/stable/c/660ba678f9998aca6db74f2dd912fa5124f0fa31
Frequently Asked Questions
What is the severity of CVE-2022-49370?
CVE-2022-49370 has been classified as having a high severity due to the potential for a memory leak in the Linux kernel.
How do I fix CVE-2022-49370?
To address CVE-2022-49370, users should upgrade to the fixed versions of the Linux kernel as per the relevant patches.
What versions of the Linux kernel are affected by CVE-2022-49370?
CVE-2022-49370 affects multiple versions of the Linux kernel, specifically those prior to fixes in versions 2.6.39 to 5.18.4.
What components are impacted by CVE-2022-49370?
CVE-2022-49370 impacts the firmware component related to dmi-sysfs in the Linux kernel.
Is there a workaround for CVE-2022-49370?
There are no specific workarounds for CVE-2022-49370, and the recommended action is to apply the security updates.
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