{"id":"ALSA-2026:6571","summary":"Moderate: kernel security update","details":"The kernel packages contain the Linux kernel, the core of any Linux operating system.  \n\nSecurity Fix(es):  \n\n  * kernel: nouveau: fix instmem race condition around ptr stores (CVE-2024-26984)\n  * kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (CVE-2026-23193)\n  * kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)\n  * kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","modified":"2026-04-07T12:59:17.078969633Z","published":"2026-04-06T00:00:00Z","related":["CVE-2024-26984","CVE-2025-71238","CVE-2026-23193","CVE-2026-23231"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6571"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2024-26984"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-71238"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-23193"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-23231"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2278333"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2439887"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2444376"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2444398"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-6571.html"}],"affected":[{"package":{"name":"bpftool","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/bpftool"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-abi-stablelists","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-abi-stablelists"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-cross-headers","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-cross-headers"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-debug","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-debug-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-debug-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-debug-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-debug-modules-extra","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-doc","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-doc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.117.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:6571.json"}},{"package":{"name":"kernel-headers","ecosystem":"AlmaLinu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