CVE-2025-37817: mcb: fix a double free bug in chameleon_parse_gdd()
First published: Thu May 08 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: mcb: fix a double free bug in chameleon_parse_gdd() In chameleon_parse_gdd(), if mcb_device_register() fails, 'mdev' would be released in mcb_device_register() via put_device(). Thus, goto 'err' label and free 'mdev' again causes a double free. Just return if mcb_device_register() fails.
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/d70184958b0ea8c0fd52e2b456654b503e769fc8
- https://git.kernel.org/stable/c/4ffe8c9fb561e4427dd1a3056cd5b3685b74f78d
- https://git.kernel.org/stable/c/59f993cd36b6e28a394ba3d977e8ffe5c9884e3b
- https://git.kernel.org/stable/c/c5b8a549ef1fcc6066b037a3962c79d60465ba0b
- https://git.kernel.org/stable/c/96838eb1836fd372e42be5db84f0b333b65146a6
- https://git.kernel.org/stable/c/df1a5d5c6134224f9298e5189230f9d29ae50cac
- https://git.kernel.org/stable/c/bcc7d58ee5173e34306026bd01e1fbf75e169d37
- https://git.kernel.org/stable/c/7c7f1bfdb2249f854a736d9b79778c7e5a29a150
Frequently Asked Questions
What is the severity of CVE-2025-37817?
CVE-2025-37817 has been classified as a moderate severity vulnerability.
How do I fix CVE-2025-37817?
To fix CVE-2025-37817, users should update their Linux kernel to the latest patched version.
What systems are affected by CVE-2025-37817?
CVE-2025-37817 affects the Linux kernel, specifically versions that include the vulnerable mcb_device_register functionality.
What does CVE-2025-37817 exploit?
CVE-2025-37817 exploits a double free bug in the chameleon_parse_gdd function of the Linux kernel.
Can CVE-2025-37817 lead to system crashes?
Yes, CVE-2025-37817 can potentially lead to system crashes or other undefined behaviors due to improper memory management.
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