{"schema_version": "1.7.0", "id": "RLSA-2026:55764", "modified": "2026-08-18T06:10:10.235305Z", "published": "2026-08-18T06:00:58.283966Z", "upstream": ["CVE-2025-39902", "CVE-2026-17523", "CVE-2026-43206", "CVE-2026-53016", "CVE-2026-53136", "CVE-2026-53329", "CVE-2026-53374", "CVE-2026-63879", "CVE-2026-63884", "CVE-2026-64219"], "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: mm/slub: avoid accessing metadata when pointer is invalid in object_err() (CVE-2025-39902)\n\n* kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206)\n\n* kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016)\n\n* kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136)\n\n* kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CVE-2026-53329)\n\n* kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374)\n\n* kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884)\n\n* kernel: drm/amdgpu: fix amdgpu_hmm_range_get_pages (CVE-2026-63879)\n\n* kernel: drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async (CVE-2026-64219)\n\n* kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges (CVE-2026-17523)\n\nBug Fix(es) and Enhancement(s):\n\n* Backport \"sched/deadline: Fix bandwidth reclaim equation in GRUB\" to Rocky Linux 8.10 (JIRA:Rocky Linux-189997)\n\n* vhost: reset the vring metadata cache on vring reconfiguration [rhel-8.10.z] (JIRA:Rocky Linux-224556)\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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:8", "name": "kernel", "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-8&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:4.18.0-553.156.1.el8_10"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:55764"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400594"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467156"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492269"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492768"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2495941"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502188"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502321"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502463"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506790"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507407"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:55764"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:55764"}}