{"id":"CLSA-2026-1783789843","summary":"Fix CVE(s): CVE-2026-43499","details":"   * CVE-2026-53166\n     - futex/requeue: Prevent NULL pointer dereference in remove_waiter() on\n       self-deadlock {CVE-2026-53166}\n   * CVE-2026-43499\n     - rtmutex: Use waiter::task instead of current in remove_waiter()\n       {CVE-2026-43499}\n   * Miscellaneous upstream changes\n     - Revert \"ext4: fix warning in ext4_iomap_begin as race between bmap and\n       write {CVE-2022-50082}\"\n   * Bump ABI 4.15.0-262","modified":"2026-10-26T09:43:16.043646817Z","published":"2026-07-11T17:10:59Z","upstream":["CVE-2022-50082","CVE-2026-43499","CVE-2026-53166"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1783789843.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43499"}],"affected":[{"package":{"name":"linux-buildinfo-4.15.0-262-generic","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-buildinfo-4.15.0-262-generic?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-buildinfo-4.15.0-262-lowlatency","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-buildinfo-4.15.0-262-lowlatency?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-cloud-tools-4.15.0-262","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-4.15.0-262?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-cloud-tools-4.15.0-262-generic","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-4.15.0-262-generic?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-cloud-tools-4.15.0-262-lowlatency","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-4.15.0-262-lowlatency?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-cloud-tools-common","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-common?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-doc","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-doc?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-headers-4.15.0-262","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-headers-4.15.0-262?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-headers-4.15.0-262-generic","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-headers-4.15.0-262-generic?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-headers-4.15.0-262-lowlatency","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-headers-4.15.0-262-lowlatency?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-image-unsigned-4.15.0-262-generic","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-image-unsigned-4.15.0-262-generic?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-image-unsigned-4.15.0-262-lowlatency","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-image-unsigned-4.15.0-262-lowlatency?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-libc-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-libc-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-modules-4.15.0-262-generic","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-modules-4.15.0-262-generic?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-modules-4.15.0-262-lowlatency","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-modules-4.15.0-262-lowlatency?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-modules-extra-4.15.0-262-generic","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-modules-extra-4.15.0-262-generic?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-source-4.15.0","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-source-4.15.0?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-tools-4.15.0-262","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-tools-4.15.0-262?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-tools-4.15.0-262-generic","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-tools-4.15.0-262-generic?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-tools-4.15.0-262-lowlatency","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-tools-4.15.0-262-lowlatency?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-tools-common","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-tools-common?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}},{"package":{"name":"linux-tools-host","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/linux-tools-host?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-262.273+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1783789843.json"}}],"schema_version":"1.9.0"}