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.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
Ubuntu USN |
USN-8177-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8177-2 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-8183-1 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-8183-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8245-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8257-1 | Linux kernel (Raspberry Pi) vulnerabilities |
Wed, 25 Mar 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-908 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:6.13:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:* |
|
| Metrics |
cvssV3_1
|
Thu, 15 Jan 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 14 Jan 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | um: init cpu_tasks[] earlier | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T21:55:09.414Z
Reserved: 2026-01-13T15:30:19.653Z
Link: CVE-2025-71115
No data.
Status : Analyzed
Published: 2026-01-14T15:16:01.177
Modified: 2026-03-25T19:00:38.887
Link: CVE-2025-71115
OpenCVE Enrichment
No data.
Ubuntu USN