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CVE-2025-38131 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: coresight: prevent deactivate active config while enabling the config While enable active config via cscfg_csdev_enable_active_config(), active config could be deactivated via configfs' sysfs interface. This could make UAF issue in below scenario: CPU0 CPU1 (sysfs enable) load module cscfg_load_config_sets() activate config. // sysfs (sys_active_cnt == 1) ... cscfg_csdev_enable_active_config() lock(csdev->cscfg_csdev_lock) // here load config activate by CPU1 unlock(csdev->cscfg_csdev_lock) deactivate config // sysfs (sys_activec_cnt == 0) cscfg_unload_config_sets() unload module // access to config_desc which freed // while unloading module. cscfg_csdev_enable_config To address this, use cscfg_config_desc's active_cnt as a reference count which will be holded when - activate the config. - enable the activated config. and put the module reference when config_active_cnt == 0.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/31028812724cef7bd57a51525ce58a32a6d73b22 kernel.org
https://git.kernel.org/stable/c/408c97c4a5e0b634dcd15bf8b8808b382e888164 kernel.org
https://git.kernel.org/stable/c/b3b4efa2e623aecaebd7c9b9e4171f5c659e9724 kernel.org
https://git.kernel.org/stable/c/dfe8224c9c7a43d356eb9f74b06868aa05f90223 kernel.org
https://git.kernel.org/stable/c/ed42ee1ed05ff2f4c36938379057413a40c56680 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-38131
NVD Published Date:
07/03/2025
NVD Last Modified:
07/03/2025
Source:
kernel.org