CVE-2025-71115

um: init cpu_tasks[] earlier

CVE-2025-71115 is fixed in linux on 1 platform by DEBIAN-CVE-2025-71115 (version 6.18.3-1), released January 14, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile

In the Linux kernel, the following vulnerability has been resolved: um: init cpu_tasks[] earlier This is currently done in uml_finishsetup(), but e.g. with KCOV enabled we'll crash because some init code can call into e.g. memparse(), which has coverage annotations, and then the checks in check_kcov_mode() crash because current is NULL. Simply initialize the cpu_tasks[] array statically, which fixes the crash. For the later SMP work, it seems to have not really caused any problems yet, but initialize all of the entries anyway.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 14 6.18.3-1 DEBIAN-CVE-2025-71115 Jan 14, 2026

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