{"action":"Upgrade linux to 6.12.20-1 or later.","affected":[{"fixed":"6.12.20-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.20-1"],"id":"tcs_01M5NN3XG5EBVAD88N412YJ46S","modified_at":"2026-10-23T18:02:32.954430922Z","published_at":"2025-04-01T16:15:28.973Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21976","https://security-tracker.debian.org/tracker/CVE-2025-21976"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21976#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21976"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: fbdev: hyperv_fb: Allow graceful removal of framebuffer When a Hyper-V framebuffer device is unbind, hyperv_fb driver tries to relea"}