{"action":"Upgrade linux to 6.19.8-1 or later.","affected":[{"fixed":"6.19.8-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.19.8-1"],"id":"tcs_01M5NR231DBBH2R5T473TXW9MR","modified_at":"2026-10-23T18:05:10.895253829Z","published_at":"2026-03-18T11:16:16.863Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-23248","https://security-tracker.debian.org/tracker/CVE-2026-23248"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-23248","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-23248"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perf_mmap Syzkaller reported a refcount_t: addition on 0; use-after-free warning in"}