{"schema_version": "1.7.0", "id": "RLSA-2026:57251", "modified": "2026-08-21T12:10:46.297919Z", "published": "2026-08-21T12:07:48.154734Z", "upstream": ["CVE-2026-43206", "CVE-2026-43237", "CVE-2026-43493", "CVE-2026-45878", "CVE-2026-45991", "CVE-2026-46185", "CVE-2026-52991", "CVE-2026-53136", "CVE-2026-53143", "CVE-2026-53329", "CVE-2026-53356", "CVE-2026-53374", "CVE-2026-63879", "CVE-2026-63884", "CVE-2026-63886", "CVE-2026-63888", "CVE-2026-63952", "CVE-2026-64017", "CVE-2026-64219", "CVE-2026-64379", "CVE-2026-64382", "CVE-2026-64386", "CVE-2026-64560", "CVE-2026-68388"], "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: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206)\n\n* kernel: drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CVE-2026-43237)\n\n* kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)\n\n* kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991)\n\n* kernel: drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CVE-2026-45878)\n\n* kernel: smb/client: fix out-of-bounds read in symlink_data() (CVE-2026-46185)\n\n* kernel: sched/psi: fix race between file release and pressure write (CVE-2026-52991)\n\n* kernel: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CVE-2026-53143)\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/i915/gem: Fix phys BO pread/pwrite with offset (CVE-2026-53356)\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: scsi: target: iscsi: Validate CHAP_R length before base64 decode (CVE-2026-63886)\n\n* kernel: memfd: deny writeable mappings when implying SEAL_WRITE (CVE-2026-63952)\n\n* kernel: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (CVE-2026-63888)\n\n* kernel: blk-mq: pop cached request if it is usable (CVE-2026-64017)\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: smb: client: fix double-free in SMB2_open() replay (CVE-2026-64382)\n\n* kernel: smb: client: mask server-provided mode to 07777 in modefromsid (CVE-2026-64379)\n\n* kernel: smb: client: fix query_info() replay double-free (CVE-2026-64386)\n\n* kernel: posix-cpu-timers: Prevent UAF caused by non-leader exec() race (CVE-2026-64560)\n\n* kernel: smb/client: handle overlapping allocated ranges in fallocate (CVE-2026-68388)\n\nBug Fix(es) and Enhancement(s):\n\n* CLONE - Rocky Linux 10.2.z xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN (JIRA:Rocky Linux-223954)\n\n* vhost: reset the vring metadata cache on vring reconfiguration [rhel-10.2.z] (JIRA:Rocky Linux-224545)\n\n* cifs: periodic IO errors when rename races with lease break [rhel-10.2.z] (JIRA:Rocky Linux-235459)\n\n* cifs: smb1 directory listings from xp server returning EINVAL and EIO [rhel-10.2.z] (JIRA:Rocky Linux-235812)\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:10", "name": "kernel", "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10-riscv64&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:6.12.0-211.49.1.el10_2"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:57251"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482124"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502329"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2495950"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502422"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479812"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467202"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507135"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482113"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467156"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492719"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506790"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513470"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482558"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502443"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502188"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492403"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502321"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2508504"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507042"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507216"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502463"}, {"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=2502449"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:57251"}], "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-2026:57251"}}