Medium 5.5Published Feb 4, 2026

CVE-2026-23094uacce: fix isolate sysfs check condition

Updated under an hour ago (Oct 29, 2026, 7:10 AM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e3e289fbc0b520cf469469e8cdba84a50424eb65 before 9ab05cdcac354b1b1139918f49c6418b9005d042; from e3e289fbc0b520cf469469e8cdba84a50424eb65 before fdbbb47d15ae17bf39fafec7e2028c1f8efba15e; from e3e289fbc0b520cf469469e8cdba84a50424eb65 before 82821a681d5dcce31475a65190fc39ea8f372cc0; from e3e289fbc0b520cf469469e8cdba84a50424eb65 before 98eec349259b1fd876f350b1c600403bcef8f85d	CNA record
linux linux_kernel linux:linux_kernel	from 6.3 before 6.6.122; from 6.7 before 6.12.68; from 6.13 before 6.18.8; 6.19; 6.19; 6.19; 6.19; 6.19; and 1 more ranges	NVD

References

References

https://git.kernel.org/stable/c/9ab05cdcac354b1b1139918f49c6418b9005d042	patch
https://git.kernel.org/stable/c/fdbbb47d15ae17bf39fafec7e2028c1f8efba15e	patch
https://git.kernel.org/stable/c/82821a681d5dcce31475a65190fc39ea8f372cc0	patch
https://git.kernel.org/stable/c/98eec349259b1fd876f350b1c600403bcef8f85d	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.