{"action":"Upgrade linux to 5.18.2-1 or later.","affected":[{"fixed":"5.18.2-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["5.18.2-1"],"id":"tcs_01M5NHVX1H00B8WN3ZTWMFNB2V","modified_at":"2026-10-23T18:04:33.093973637Z","published_at":"2023-07-13T00:15:24.340Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-21400","https://security-tracker.debian.org/tracker/CVE-2023-21400"],"severity":{"label":"medium","score":6.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-21400#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-21400"}],"summary":"In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileg"}