{"action":"Upgrade linux to 6.19.6-1 or later.","affected":[{"fixed":"6.19.6-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.19.6-1"],"id":"tcs_01M5NS2HEJ0APKSX1E7NY8BM1P","modified_at":"2026-10-01T03:02:44.822245458Z","published_at":"2026-05-06T12:16:28.950Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-43121","https://security-tracker.debian.org/tracker/CVE-2026-43121"],"severity":{"label":"medium","score":4.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-43121","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-43121"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix user_ref race between scrub and refill paths The io_zcrx_put_niov_uref() function uses a non-atomic check-then-de"}