CVE-2026-23094 (GCVE-0-2026-23094)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-09 08:38
VLAI?
Title
uacce: fix isolate sysfs check condition
Summary
In the Linux kernel, the following vulnerability has been resolved: uacce: fix isolate sysfs check condition uacce supports the device isolation feature. If the driver implements the isolate_err_threshold_read and isolate_err_threshold_write callback functions, uacce will create sysfs files now. Users can read and configure the isolation policy through sysfs. Currently, sysfs files are created as long as either isolate_err_threshold_read or isolate_err_threshold_write callback functions are present. However, accessing a non-existent callback function may cause the system to crash. Therefore, intercept the creation of sysfs if neither read nor write exists; create sysfs if either is supported, but intercept unsupported operations at the call site.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e3e289fbc0b520cf469469e8cdba84a50424eb65 , < 9ab05cdcac354b1b1139918f49c6418b9005d042 (git)
Affected: e3e289fbc0b520cf469469e8cdba84a50424eb65 , < fdbbb47d15ae17bf39fafec7e2028c1f8efba15e (git)
Affected: e3e289fbc0b520cf469469e8cdba84a50424eb65 , < 82821a681d5dcce31475a65190fc39ea8f372cc0 (git)
Affected: e3e289fbc0b520cf469469e8cdba84a50424eb65 , < 98eec349259b1fd876f350b1c600403bcef8f85d (git)
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    Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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            "drivers/misc/uacce/uacce.c"
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    "dateReserved": "2026-01-13T15:37:45.963Z",
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Therefore, intercept the creation of sysfs if\\nneither read nor write exists; create sysfs if either is supported,\\nbut intercept unsupported operations at the call site.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nuacce: corregir la condici\u00f3n de verificaci\u00f3n de sysfs de aislamiento\\n\\nuacce soporta la caracter\u00edstica de aislamiento de dispositivos. Si el controlador implementa las funciones de callback isolate_err_threshold_read e isolate_err_threshold_write, uacce crear\u00e1 archivos sysfs ahora. Los usuarios pueden leer y configurar la pol\u00edtica de aislamiento a trav\u00e9s de sysfs. Actualmente, los archivos sysfs se crean siempre que est\u00e9n presentes las funciones de callback isolate_err_threshold_read o isolate_err_threshold_write.\\n\\nSin embargo, acceder a una funci\u00f3n de callback inexistente puede causar que el sistema falle. 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}


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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.



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