CVE-2023-52652: NTB: fix possible name leak in ntb_register_device()
First published: Wed May 01 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: NTB: fix possible name leak in ntb_register_device() If device_register() fails in ntb_register_device(), the device name allocated by dev_set_name() should be freed. As per the comment in device_register(), callers should use put_device() to give up the reference in the error path. So fix this by calling put_device() in the error path so that the name can be freed in kobject_cleanup(). As a result of this, put_device() in the error path of ntb_register_device() is removed and the actual error is returned. [mani: reworded commit message]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | <=5.10.223-1<=5.10.234-1 | 6.1.129-1 6.1.135-1 6.12.22-1 6.12.25-1 |
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Reference Links
- https://git.kernel.org/stable/c/6632a54ac8057cc0b0d789c6f73883e871bcd25c
- https://git.kernel.org/stable/c/913421f9f7fd8324dcc41753d0f28b52e177ef04
- https://git.kernel.org/stable/c/a039690d323221eb5865f1f31db3ec264e7a14b6
- https://git.kernel.org/stable/c/a62b9f3d7bbfac874cc0c638bc1776dcf1f8ec06
- https://git.kernel.org/stable/c/aebfdfe39b9327a3077d0df8db3beb3160c9bdd0
- https://git.kernel.org/stable/c/e8025439ef8e16029dc313d78a351ef192469b7b
- https://launchpad.net/bugs/cve/CVE-2023-52652
- https://git.kernel.org/linus/aebfdfe39b9327a3077d0df8db3beb3160c9bdd0
- https://security-tracker.debian.org/tracker/CVE-2023-52652
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52652
- https://nvd.nist.gov/vuln/detail/CVE-2023-52652
- https://ubuntu.com/security/CVE-2023-52652
Frequently Asked Questions
What is the severity of CVE-2023-52652?
CVE-2023-52652 has a medium severity rating due to its potential to disclose device names.
How do I fix CVE-2023-52652?
To fix CVE-2023-52652, you should upgrade to the latest kernel version that includes the resolution.
What software is affected by CVE-2023-52652?
CVE-2023-52652 affects specific versions of the Linux kernel, particularly those prior to 5.10.223-1 and including various Debian packages.
What is the impact of CVE-2023-52652?
The impact of CVE-2023-52652 is a potential name leak in ntb_register_device() that could expose sensitive information.
When was CVE-2023-52652 disclosed?
CVE-2023-52652 was disclosed alongside fixes in the Linux kernel for vulnerabilities related to device registration.
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