{"vulnerability": "CVE-2025-21786", "sightings": [{"uuid": "84a2152e-31ec-4207-bccc-5f6065a6fb50", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2025-21786", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3lj56qbd3yc2w", "content": "", "creation_timestamp": "2025-02-27T05:43:48.255517Z"}, {"uuid": "adc59362-3c4c-4954-9841-36fc9795a90e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2025-21786", "type": "seen", "source": "https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0316/", "content": "", "creation_timestamp": "2026-03-19T00:00:00.000000Z"}, {"uuid": "8ce1c68f-8871-481d-a18b-15d3a49b9c21", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2025-21786", "type": "seen", "source": "https://t.me/cvedetector/19006", "content": "{\n  \"Source\": \"CVE FEED\",\n  \"Title\": \"CVE-2025-21786 - Linux Kernel Workqueue Use-After-Free Vulnerability\", \n  \"Content\": \"CVE ID : CVE-2025-21786 \nPublished : Feb. 27, 2025, 3:15 a.m. | 1\u00a0hour, 54\u00a0minutes ago \nDescription : In the Linux kernel, the following vulnerability has been resolved:  \n  \nworkqueue: Put the pwq after detaching the rescuer from the pool  \n  \nThe commit 68f83057b913(\"workqueue: Reap workers via kthread_stop() and  \nremove detach_completion\") adds code to reap the normal workers but  \nmistakenly does not handle the rescuer and also removes the code waiting  \nfor the rescuer in put_unbound_pool(), which caused a use-after-free bug  \nreported by Cheung Wall.  \n  \nTo avoid the use-after-free bug, the pool\u2019s reference must be held until  \nthe detachment is complete. Therefore, move the code that puts the pwq  \nafter detaching the rescuer from the pool. \nSeverity: 0.0 | NA \nVisit the link for more details, such as CVSS details, affected products, timeline, and more...\",\n  \"Detection Date\": \"27 Feb 2025\",\n  \"Type\": \"Vulnerability\"\n}\n\ud83d\udd39 t.me/cvedetector \ud83d\udd39", "creation_timestamp": "2025-02-27T06:11:28.000000Z"}]}