Riskcovery

CVE-2025-71115

um: init cpu_tasks[] earlier

State
Published
Severity
Not scored
Published
Jan 14, 2026
Updated
May 11, 2026
Reserved
Jan 13, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 2f681ba4b352cdd5658ed2a96062375a12839755 to before dbbf6d47130674640cd12a0781a0fb2a575d0e44Affected
  • 2f681ba4b352cdd5658ed2a96062375a12839755 to before 7b5d4416964c07c902163822a30a622111172b01Affected
LinuxLinux
  • 6.13Affected
  • before 6.13Not affected
  • 6.18.3 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

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