5.5

CVE-2025-71115

um: init cpu_tasks[] earlier

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.13.1 < 6.18.3
Linux ≫ Linux Kernel Version6.13 Update-
Linux ≫ Linux Kernel Version6.19 Updaterc1
Linux ≫ Linux Kernel Version6.19 Updaterc2
Linux ≫ Linux Kernel Version6.19 Updaterc3
Linux ≫ Linux Kernel Version6.19 Updaterc4
Linux ≫ Linux Kernel Version6.19 Updaterc5
Linux ≫ Linux Kernel Version6.19 Updaterc6
Linux ≫ Linux Kernel Version6.19 Updaterc7
Linux ≫ Linux Kernel Version6.19 Updaterc8
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.072
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-908 Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.