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CVE-2025-38131 (GCVE-0-2025-38131)

Vulnerability from cvelistv5 – Published: 2025-07-03 08:35 – Updated: 2026-05-11 21:21
VLAI
Title
coresight: prevent deactivate active config while enabling the config
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f8cce2ff3c04361b8843d8489620fda8880f668b , < dfe8224c9c7a43d356eb9f74b06868aa05f90223 (git)
Affected: f8cce2ff3c04361b8843d8489620fda8880f668b , < b3b4efa2e623aecaebd7c9b9e4171f5c659e9724 (git)
Affected: f8cce2ff3c04361b8843d8489620fda8880f668b , < 31028812724cef7bd57a51525ce58a32a6d73b22 (git)
Affected: f8cce2ff3c04361b8843d8489620fda8880f668b , < ed42ee1ed05ff2f4c36938379057413a40c56680 (git)
Affected: f8cce2ff3c04361b8843d8489620fda8880f668b , < 408c97c4a5e0b634dcd15bf8b8808b382e888164 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.142 , ≤ 6.1.* (semver)
Unaffected: 6.6.94 , ≤ 6.6.* (semver)
Unaffected: 6.12.34 , ≤ 6.12.* (semver)
Unaffected: 6.15.3 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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Al habilitar la configuraci\u00f3n activa mediante cscfg_csdev_enable_active_config(), esta podr\u00eda desactivarse mediante la interfaz sysfs de configfs. 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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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