{"uuid": "92ba90f2-b993-475c-8bd8-4a2ab02869a9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-21817", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/18862", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2025-21817\n\ud83d\udd25 CVSS Score: N/A\n\ud83d\udd39 Description: In the Linux kernel, the following vulnerability has been resolved:\n\nblock: mark GFP_NOIO around sysfs ->store()\n\nsysfs ->store is called with queue freezed, meantime we have several\n->store() callbacks(update_nr_requests, wbt, scheduler) to allocate\nmemory with GFP_KERNEL which may run into direct reclaim code path,\nthen potential deadlock can be caused.\n\nFix the issue by marking NOIO around sysfs ->store()\n\ud83d\udccf Published: 2025-02-27T20:04:15.988Z\n\ud83d\udccf Modified: 2025-06-19T12:56:45.920Z\n\ud83d\udd17 References:\n1. https://git.kernel.org/stable/c/2566ce907e5d5db8a039647208e029ce559baa31\n2. https://git.kernel.org/stable/c/7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c", "creation_timestamp": "2025-06-19T13:39:55.000000Z"}