- Vulnerability/
- CVE-2025-21975
CVE-2025-21975: net/mlx5: handle errors in mlx5_chains_create_table()
First published: Tue Apr 01 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: handle errors in mlx5_chains_create_table() In mlx5_chains_create_table(), the return value of mlx5_get_fdb_sub_ns() and mlx5_get_flow_namespace() must be checked to prevent NULL pointer dereferences. If either function fails, the function should log error message with mlx5_core_warn() and return error pointer.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel |
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Reference Links
- https://git.kernel.org/stable/c/1598307c914ba3d2642a2b03d1ff11efbdb7c6c2
- https://git.kernel.org/stable/c/637105ef0d46fe5beac15aceb431da3ec832bb00
- https://git.kernel.org/stable/c/1d34296409a519b4027750e3e82d9e19553a7398
- https://git.kernel.org/stable/c/093b4aaec97ec048623e3fe1e516fc45a954d412
- https://git.kernel.org/stable/c/eab0396353be1c778eba1c0b5180176f04dd21ce
Frequently Asked Questions
What is the severity of CVE-2025-21975?
CVE-2025-21975 is classified as a medium severity vulnerability due to the potential for NULL pointer dereferences in the Linux kernel.
How do I fix CVE-2025-21975?
To fix CVE-2025-21975, update your Linux kernel to a version where this vulnerability has been resolved.
What are the potential impacts of CVE-2025-21975?
The potential impact of CVE-2025-21975 includes system instability or crashes due to NULL pointer dereferences.
Which versions of the Linux Kernel are affected by CVE-2025-21975?
CVE-2025-21975 affects multiple versions of the Linux kernel that include the flawed mlx5_chains_create_table() function.
Is CVE-2025-21975 related to network security?
Yes, CVE-2025-21975 is related to network security as it involves flow management functions within the Linux kernel.
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