CVE-2024-27064: netfilter: nf_tables: Fix a memory leak in nf_tables_updchain
First published: Wed May 01 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix a memory leak in nf_tables_updchain If nft_netdev_register_hooks() fails, the memory associated with nft_stats is not freed, causing a memory leak. This patch fixes it by moving nft_stats_alloc() down after nft_netdev_register_hooks() succeeds.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.3.3<6.4 | |
| Linux Kernel | >=6.4<6.6.23 | |
| Linux Kernel | >=6.7<6.7.11 | |
| Linux Kernel | >=6.8<6.8.2 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.10-1 6.12.11-1 |
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Reference Links
- https://git.kernel.org/stable/c/4e4623a4f6e133e671f65f9ac493bddaaf63e250
- https://git.kernel.org/stable/c/79846fdcc548d617b0b321addc6a3821d3b75b20
- https://git.kernel.org/stable/c/7eaf837a4eb5f74561e2486972e7f5184b613f6e
- https://git.kernel.org/stable/c/e77a6b53a3a547b6dedfc40c37cee4f310701090
- https://launchpad.net/bugs/cve/CVE-2024-27064
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27064
- https://nvd.nist.gov/vuln/detail/CVE-2024-27064
- https://security-tracker.debian.org/tracker/CVE-2024-27064
- https://ubuntu.com/security/CVE-2024-27064
- https://git.kernel.org/linus/7eaf837a4eb5f74561e2486972e7f5184b613f6e
Frequently Asked Questions
What is the severity of CVE-2024-27064?
The severity of CVE-2024-27064 is considered medium due to the potential for a memory leak affecting system performance.
Which versions of the Linux kernel are affected by CVE-2024-27064?
CVE-2024-27064 affects the Linux kernel versions from 6.3.3 up to, but not including 6.6.23, 6.7 up to 6.7.11, and 6.8 up to 6.8.2.
How do I fix CVE-2024-27064?
To fix CVE-2024-27064, you should upgrade your Linux kernel to a patched version available after the vulnerability disclosure.
What type of vulnerability is CVE-2024-27064?
CVE-2024-27064 is a memory leak vulnerability in the netfilter component of the Linux kernel.
What impact does CVE-2024-27064 have on system stability?
CVE-2024-27064 can lead to increased memory consumption over time, potentially degrading system stability and performance.
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