CVE-2024-56601: net: inet: do not leave a dangling sk pointer in inet_create()
First published: Fri Dec 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: inet: do not leave a dangling sk pointer in inet_create() sock_init_data() attaches the allocated sk object to the provided sock object. If inet_create() fails later, the sk object is freed, but the sock object retains the dangling pointer, which may create use-after-free later. Clear the sk pointer in the sock object on error.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.4.287 | |
| Linux Kernel | >=5.5<5.10.231 | |
| Linux Kernel | >=5.11<5.15.174 | |
| Linux Kernel | >=5.16<6.1.120 | |
| Linux Kernel | >=6.2<6.6.66 | |
| Linux Kernel | >=6.7<6.12.5 |
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Reference Links
- https://git.kernel.org/stable/c/f8a3f255f7509a209292871715cda03779640c8d
- https://git.kernel.org/stable/c/2bc34d8c8898ae9fddf4612501aabb22d76c2b2c
- https://git.kernel.org/stable/c/3e8258070b0f2aba66b3ef18883de229674fb288
- https://git.kernel.org/stable/c/b4513cfd3a10c03c660d5d3d26c2e322efbfdd9b
- https://git.kernel.org/stable/c/25447c6aaa7235f155292b0c58a067347e8ae891
- https://git.kernel.org/stable/c/691d6d816f93b2a1008c14178399061466e674ef
- https://git.kernel.org/stable/c/9365fa510c6f82e3aa550a09d0c5c6b44dbc78ff
Frequently Asked Questions
What is the severity of CVE-2024-56601?
CVE-2024-56601 has a moderate severity level due to potential risk of system instability.
Which versions of the Linux kernel are affected by CVE-2024-56601?
CVE-2024-56601 affects Linux kernel versions up to 5.4.287 and specific ranges from 5.5 up to 6.6.66.
How do I fix CVE-2024-56601?
To fix CVE-2024-56601, update the Linux kernel to the latest stable version that eliminates this vulnerability.
What systems are impacted by CVE-2024-56601?
Systems running affected versions of the Linux kernel may experience issues related to socket handling.
Is CVE-2024-56601 a remote or local vulnerability?
CVE-2024-56601 can be exploited locally, requiring access to the system to trigger the issue.
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