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CVE-2025-37817: mcb: fix a double free bug in chameleon_parse_gdd()

Description

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.

Classification

CVE ID: CVE-2025-37817

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 7.6% (scored less or equal to compared to others)

EPSS Date: 2025-06-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-37817
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

Timeline