{"action":"Upgrade linux to 6.12.43-1 or later.","affected":[{"fixed":"6.12.43-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.43-1"],"id":"tcs_01M5NNKBDB4ZXTTF68P210T2E8","modified_at":"2026-09-01T20:05:49.362428781Z","published_at":"2025-08-19T17:15:32.790Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-38563","https://security-tracker.debian.org/tracker/CVE-2025-38563"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-38563#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-38563"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: perf/core: Prevent VMA split of buffer mappings The perf mmap code is careful about mmap()'ing the user page with the ringbuffer and"}