{"uuid": "4073bf82-6407-4098-8592-ca9e6eb9470b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-37880", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/15693", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2025-37880\n\ud83d\udd25 CVSS Score: N/A\n\ud83d\udd39 Description: In the Linux kernel, the following vulnerability has been resolved:\n\num: work around sched_yield not yielding in time-travel mode\n\nsched_yield by a userspace may not actually cause scheduling in\ntime-travel mode as no time has passed. In the case seen it appears to\nbe a badly implemented userspace spinlock in ASAN. Unfortunately, with\ntime-travel it causes an extreme slowdown or even deadlock depending on\nthe kernel configuration (CONFIG_UML_MAX_USERSPACE_ITERATIONS).\n\nWork around it by accounting time to the process whenever it executes a\nsched_yield syscall.\n\ud83d\udccf Published: 2025-05-09T06:45:44.117Z\n\ud83d\udccf Modified: 2025-05-09T06:45:44.117Z\n\ud83d\udd17 References:\n1. https://git.kernel.org/stable/c/da780c4a075ba2deb05ae29f0af4a990578c7901\n2. https://git.kernel.org/stable/c/990ddc65173776f1e01e7135d8c1fd5f8fd4d5d2\n3. https://git.kernel.org/stable/c/887c5c12e80c8424bd471122d2e8b6b462e12874", "creation_timestamp": "2025-05-09T07:25:38.000000Z"}