{"id":"RLSA-2026:57251","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.","modified":"2026-08-21T12:30:14.827313234Z","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"],"database_specific":{"source_advisory":"RHSA-2026:57251","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/"},"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"}],"affected":[{"package":{"name":"kernel","ecosystem":"Rocky Linux:10","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"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:57251.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}