{"id":"RLSA-2026:91565","summary":"Important: kernel security, bug fix, and enhancement update","details":"The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: tcp: restrict SO_ATTACH_FILTER to priv users (CVE-2026-53236)\n\n* kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)\n\n* kernel: net: shaper: rework the VALID marking (again) (CVE-2026-64027)\n\n* kernel: net/handshake: hand off the pinned file reference to accept_doit (CVE-2026-63979)\n\n* kernel: net/handshake: Drain pending requests at net namespace exit (CVE-2026-63978)\n\n* kernel: af_unix: Fix UAF read of tail-\u003elen in unix_stream_data_wait() (CVE-2026-64109)\n\n* kernel: net/handshake: Take a long-lived file reference at submit (CVE-2026-64523)\n\n* kernel: net: gro: fix double aggregation of flush-marked skbs (CVE-2026-68136)\n\n* kernel: net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)\n\n* kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)\n\n* kernel: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CVE-2026-74515)\n\n* kernel: net: smc: fix splice entry lifetime imbalance in smc_rx_splice (CVE-2026-74631)\n\n* kernel: usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CVE-2026-80824)\n\n* kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions (CVE-2026-89638)\n\n* kernel: vfio/pci: clear vdev-\u003emsi_perm after freeing it on init failure (CVE-2026-89777)\n\n* kernel: md/raid5-ppl: fix use-after-free in ppl_do_flush() (CVE-2026-93262)\n\nBug Fix(es) and Enhancement(s):\n\n* x86/microcode: Add platform mask to Intel microcode \"old\" list [Rocky Linux-10] [rhel-10.2.z] (JIRA:Rocky Linux-212778)\n\n* net: NULL pointer deref kernel panic in fib6_walk_continue under heavy VRF churn [rhel-10.2.z] (JIRA:Rocky Linux-245489)\n\n* backport fixes for lockdep issues reported with rt-debug [rhel-10.2.z] (JIRA:Rocky Linux-259937)\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":"2026-10-29T12:30:03.642105789Z","published":"2026-10-29T12:08:23.381701Z","upstream":["CVE-2026-53236","CVE-2026-53388","CVE-2026-63978","CVE-2026-63979","CVE-2026-64027","CVE-2026-64109","CVE-2026-64523","CVE-2026-68136","CVE-2026-68338","CVE-2026-72083","CVE-2026-74515","CVE-2026-74631","CVE-2026-80824","CVE-2026-89638","CVE-2026-89777","CVE-2026-93262"],"database_specific":{"license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:91565"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:91565"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492709"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502255"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502341"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502376"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502382"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502615"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2507122"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2513163"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2513264"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516579"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2517006"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521413"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528642"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532122"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535066"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540323"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:91565"}],"affected":[{"package":{"name":"kernel","ecosystem":"Rocky Linux:10","purl":"pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:6.12.0-211.69.1.el10_2"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:91565.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}