CVE-2025-38132

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

coresight: holding cscfg_csdev_lock while removing cscfg from csdev

There'll be possible race scenario for coresight config:

CPU0 CPU1

(perf enable) load module

cscfg_load_config_sets()

activate config. // sysfs

(sys_active_cnt == 1)

...

cscfg_csdev_enable_active_config()

lock(csdev->cscfg_csdev_lock)

deactivate config // sysfs

(sys_activec_cnt == 0)

cscfg_unload_config_sets()

<iterating config_csdev_list> cscfg_remove_owned_csdev_configs()

// here load config activate by CPU1

unlock(csdev->cscfg_csdev_lock)

iterating config_csdev_list could be raced

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References