{"id":"RLSA-2026:26427","summary":"Important: 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: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)\n\n* kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)\n\n* kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)\n\n* kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)\n\n* kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)\n\n* kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)\n\n* kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)\n\n* kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)\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.","modified":"2026-06-19T00:30:05.036151052Z","published":"2026-06-19T00:00:43.922159Z","upstream":["CVE-2026-31669","CVE-2026-31786","CVE-2026-31787","CVE-2026-43110","CVE-2026-43329","CVE-2026-46056","CVE-2026-46125","CVE-2026-46152"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:26427"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2461503"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464092"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464096"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467014"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2468124"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482181"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482563"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482608"}],"affected":[{"package":{"name":"kernel","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/kernel?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.134.1.el8_10"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:26427.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}