CVE-2024-26734: devlink: fix possible use-after-free and memory leaks in devlink_init()
First published: Wed Apr 03 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: devlink: fix possible use-after-free and memory leaks in devlink_init() The pernet operations structure for the subsystem must be registered before registering the generic netlink family. Make an unregister in case of unsuccessful registration.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.3<6.6.19 | |
| Linux Kernel | >=6.7<6.7.7 | |
| Linux Kernel | =6.8-rc1 | |
| Linux Kernel | =6.8-rc2 | |
| Linux Kernel | =6.8-rc3 | |
| Linux Kernel | =6.8-rc4 | |
| Linux Kernel | =6.8-rc5 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/919092bd5482b7070ae66d1daef73b600738f3a2
- https://git.kernel.org/stable/c/def689fc26b9a9622d2e2cb0c4933dd3b1c8071c
- https://git.kernel.org/stable/c/e91d3561e28d7665f4f837880501dc8755f635a9
- https://launchpad.net/bugs/cve/CVE-2024-26734
- https://git.kernel.org/linus/def689fc26b9a9622d2e2cb0c4933dd3b1c8071c
- https://security-tracker.debian.org/tracker/CVE-2024-26734
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26734
- https://nvd.nist.gov/vuln/detail/CVE-2024-26734
- https://ubuntu.com/security/CVE-2024-26734
Frequently Asked Questions
What is the severity of CVE-2024-26734?
CVE-2024-26734 is classified as a medium severity vulnerability within the Linux kernel.
How do I fix CVE-2024-26734?
To fix CVE-2024-26734, update your Linux kernel to the latest patched version or apply the appropriate security updates.
Which versions of Linux kernel are affected by CVE-2024-26734?
CVE-2024-26734 affects multiple versions of the Linux kernel, specifically those between 6.3 and 6.6.19, as well as 6.8-rc1 to 6.8-rc5.
What is the nature of CVE-2024-26734 vulnerability?
CVE-2024-26734 is a use-after-free and memory leak vulnerability occurring in the devlink_init() function.
Is there a risk associated with CVE-2024-26734?
Yes, CVE-2024-26734 poses a risk of exploitation that could potentially allow an attacker to execute arbitrary code in the kernel context.
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