{"id":"ALSA-2026:1661","summary":"Moderate: kernel-rt security update","details":"The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.  \n\nSecurity Fix(es):  \n\n  * kernel: IB/hfi1: Fix sdma.h tx-\u003enum_descs off-by-one error (CVE-2024-26766)\n  * kernel: RDMA/core: Fix \"KASAN: slab-use-after-free Read in ib_register_device\" problem (CVE-2025-38022)\n  * kernel: Linux kernel: RDMA/rxe use-after-free vulnerability leading to potential arbitrary code execution (CVE-2025-38024)\n  * kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation (CVE-2025-38415)\n  * kernel: Linux kernel: Denial of Service in ATM CLIP module via infinite recursion (CVE-2025-38459)\n  * kernel: Linux kernel: Denial of Service via out-of-bounds read in USB configuration parsing (CVE-2025-39760)\n  * kernel: mptcp: fix race condition in mptcp_schedule_work() (CVE-2025-40258)\n  * kernel: Linux kernel: Use-after-free in proc_readdir_de() can lead to privilege escalation or denial of service. (CVE-2025-40271)\n  * kernel: Linux kernel: Information disclosure and denial of service via out-of-bounds read in font glyph handling (CVE-2025-40322)\n  * kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() (CVE-2022-50865)\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":"2026-02-03T09:43:43.103915Z","published":"2026-02-02T00:00:00Z","related":["CVE-2022-50865","CVE-2024-26766","CVE-2025-38022","CVE-2025-38024","CVE-2025-38415","CVE-2025-38459","CVE-2025-39760","CVE-2025-40258","CVE-2025-40271","CVE-2025-40322"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:1661"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2022-50865"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2024-26766"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-38022"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-38024"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-38415"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-38459"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-39760"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-40258"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-40271"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-40322"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2273187"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2373326"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2373354"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2383404"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2383487"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2394601"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2418876"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2419837"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2419902"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2426226"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-1661.html"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-debug","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-debug-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-debug-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-debug-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-debug-modules-extra","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-debug-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}},{"package":{"name":"kernel-rt-modules-extra","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-rt-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.100.1.rt7.441.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:1661.json"}}],"schema_version":"1.7.3"}