CVE-2024-42069: net: mana: Fix possible double free in error handling path
First published: Mon Jul 29 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix possible double free in error handling path When auxiliary_device_add() returns error and then calls auxiliary_device_uninit(), callback function adev_release calls kfree(madev). We shouldn't call kfree(madev) again in the error handling path. Set 'madev' to NULL.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | <6.2 | |
| Linux kernel | >=6.3<6.6.37 | |
| Linux kernel | >=6.7<6.9.8 | |
| Linux Kernel | <6.2 | |
| Linux Kernel | >=6.3<6.6.37 | |
| Linux Kernel | >=6.7<6.9.8 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 | |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/1864b8224195d0e43ddb92a8151f54f6562090cc
- https://git.kernel.org/stable/c/3243e64eb4d897c3eeb48b2a7221ab5a95e1282a
- https://git.kernel.org/stable/c/ed45c0a0b662079d4c0e518014cc148c753979b4
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-42069
- https://nvd.nist.gov/vuln/detail/CVE-2024-42069
- https://launchpad.net/bugs/cve/CVE-2024-42069
- https://security-tracker.debian.org/tracker/CVE-2024-42069
- https://ubuntu.com/security/CVE-2024-42069
- https://git.kernel.org/linus/1864b8224195d0e43ddb92a8151f54f6562090cc
Frequently Asked Questions
What is the severity of CVE-2024-42069?
CVE-2024-42069 is classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2024-42069?
You can fix CVE-2024-42069 by updating to the patched versions of the Linux kernel, specifically 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.128-1, 6.12.12-1, or 6.12.15-1.
Which versions of the Linux kernel are affected by CVE-2024-42069?
CVE-2024-42069 affects Linux kernel versions prior to 6.3 and versions between 6.7 and 6.9.8.
What component of the Linux kernel is impacted by CVE-2024-42069?
CVE-2024-42069 impacts the net subsystem, specifically related to 'mana' and error handling in auxiliary devices.
Is CVE-2024-42069 a remote or local vulnerability?
CVE-2024-42069 is primarily a local vulnerability that could be exploited by users with sufficient privileges on the affected system.
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