{"id":"CLSA-2026-1783789054","summary":"kernel: Fix of 3 CVEs","details":"- futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock {CVE-2026-53166}\n- rtmutex: Use waiter::task instead of current in remove_waiter() {CVE-2026-43499}\n- i40e: Fix use-after-free in i40e_client_subtask() {CVE-2021-46991}\n- ethernet:enic: Fix a use after free bug in enic_hard_start_xmit {CVE-2021-46998}","modified":"2026-10-26T09:43:29.422743476Z","published":"2026-07-11T16:57:52Z","upstream":["CVE-2021-46991","CVE-2021-46998","CVE-2026-43499","CVE-2026-53166"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos8.4els/CLSA-2026-1783789054.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46991"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46998"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43499"}],"affected":[{"package":{"name":"bpftool","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/bpftool?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-core","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-core?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-cross-headers","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-cross-headers?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-debug","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-debug?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-debug-core","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-debug-core?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-debug-devel","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-debug-devel?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-debug-modules","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-debug-modules?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-debug-modules-extra","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-debug-modules-extra?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-debug-modules-internal","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-debug-modules-internal?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-devel","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-devel?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-headers","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-headers?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-ipaclones-internal","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-ipaclones-internal?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-modules","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-modules?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-modules-extra","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-modules-extra?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-modules-internal","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-modules-internal?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-selftests-internal","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-selftests-internal?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-tools","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-tools?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-tools-libs","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-tools-libs?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"kernel-tools-libs-devel","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/kernel-tools-libs-devel?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"perf","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/perf?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}},{"package":{"name":"python3-perf","ecosystem":"TuxCare:CentOS:8.4","purl":"pkg:rpm/tuxcare/python3-perf?distro=centos-8.4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.25.1.el8_4.tuxcare.els44"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.4els/CLSA-2026-1783789054.json"}}],"schema_version":"1.9.0"}