CVE-2025-37880

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Source
https://cve.org/CVERecord?id=CVE-2025-37880
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37880.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-37880
Downstream
Related
Published
2025-05-09T06:45:44.117Z
Modified
2026-05-15T11:54:17.822231519Z
Summary
um: work around sched_yield not yielding in time-travel mode
Details

In the Linux kernel, the following vulnerability has been resolved:

um: work around sched_yield not yielding in time-travel mode

schedyield by a userspace may not actually cause scheduling in time-travel mode as no time has passed. In the case seen it appears to be a badly implemented userspace spinlock in ASAN. Unfortunately, with time-travel it causes an extreme slowdown or even deadlock depending on the kernel configuration (CONFIGUMLMAXUSERSPACE_ITERATIONS).

Work around it by accounting time to the process whenever it executes a sched_yield syscall.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37880.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.3.0
Fixed
6.14.5

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37880.json"