{"id":"CLSA-2026-1783426018","aliases":[],"status":"published","title":"Update of linux","description":"* Miscellaneous upstream changes\n     - net/sched: fix pedit partial COW leading to page cache corruption\n   * Bump ABI 5.4.0-233","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-07-07T12:07:11Z","modified":"2026-10-26T09:32:05Z","fixes":[{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-buildinfo-5.4.0-233-generic","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-buildinfo-5.4.0-233-lowlatency","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-5.4.0-233","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-5.4.0-233-generic","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-5.4.0-233-lowlatency","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-common","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-doc","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-headers-5.4.0-233","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-headers-5.4.0-233-generic","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-headers-5.4.0-233-lowlatency","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-image-unsigned-5.4.0-233-generic","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-image-unsigned-5.4.0-233-lowlatency","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-libc-dev","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-modules-5.4.0-233-generic","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-modules-5.4.0-233-lowlatency","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-modules-extra-5.4.0-233-generic","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-source-5.4.0","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-5.4.0-233","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-5.4.0-233-generic","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-5.4.0-233-lowlatency","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-common","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-host","fixed_in":["5.4.0-233.253+tuxcare.els1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-buildinfo-5.4.0-233-generic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-buildinfo-5.4.0-233-lowlatency","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-5.4.0-233","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-5.4.0-233-generic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-5.4.0-233-lowlatency","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-cloud-tools-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-headers-5.4.0-233","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-headers-5.4.0-233-generic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-headers-5.4.0-233-lowlatency","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-image-unsigned-5.4.0-233-generic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-image-unsigned-5.4.0-233-lowlatency","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-libc-dev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-modules-5.4.0-233-generic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-modules-5.4.0-233-lowlatency","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-modules-extra-5.4.0-233-generic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-source-5.4.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-5.4.0-233","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-5.4.0-233-generic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-5.4.0-233-lowlatency","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:Ubuntu:20.04","package":"linux-tools-host","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-233.253+tuxcare.els1"}]}]}],"references":[{"url":"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1783426018.html","tags":["advisory"]}],"sources":{"osv":[{"id":"CLSA-2026-1783426018","title":"Update of linux","description":"   * Miscellaneous upstream changes\n     - net/sched: fix pedit partial COW leading to page cache corruption\n   * Bump ABI 5.4.0-233","status":"published","published":"2026-07-07T12:07:11Z","modified":"2026-10-26T09:32:05.475999265Z","updated_at":"2026-11-02T15:43:46.151924Z"}]}}