This kernel live patch module addresses CVE-2026-64600 (CVSS 7.8 HIGH), a vulnerability in the XFS filesystem that can lead to data corruption when using reflink functionality. The patch is targeted for the `kernel-5.14.0-687.10.1.el9_8` version on Red Hat Enterprise Linux 9. Applying this kpatch update requires a system reboot to take effect.
Red Hat Product Errata RHSA-2026:47981 - Security Advisory Issued: 2026-07-29 Updated: 2026-07-29 RHSA-2026:47981 - Security Advisory Overview Updated Packages Synopsis Important: kpatch-patch security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for kpatch-patch-5_14_0-687_10_1 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-687.10.1.el9_8. Security Fix(es): kernel: XFS data corruption using reflink (CVE-2026-64600) For 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Affected Products Red Hat Enterprise Linux for x86_64 9 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8 x86_64 Red Hat Enterprise Linux for Power, little endian 9 ppc64le Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8 ppc64le Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8 x86_64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8 ppc64le Fixes BZ - 2498915 - CVE-2026-64600 kernel: XFS data corruption using reflink CVEs CVE-2026-64600 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 9 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 x86_64 kpatch-patch-5_14_0-687_10_1-1-5.el9_8.x86_64.rpm SHA-256: ae1c646ad2fca43e5d8a9a22adc312c41d937e853d02131d5aea9bf9f3a0fbdc kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.x86_64.rpm SHA-256: 78e28b7fc2122099f5634c93b8e4c4243fb2f566f8e81defd7ee184388734341 kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.x86_64.rpm SHA-256: 9ac07ea91d6bd65c8f4232bd2851354a64385a5249197f12574156491ccf5ce8 Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 x86_64 kpatch-patch-5_14_0-687_10_1-1-5.el9_8.x86_64.rpm SHA-256: ae1c646ad2fca43e5d8a9a22adc312c41d937e853d02131d5aea9bf9f3a0fbdc kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.x86_64.rpm SHA-256: 78e28b7fc2122099f5634c93b8e4c4243fb2f566f8e81defd7ee184388734341 kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.x86_64.rpm SHA-256: 9ac07ea91d6bd65c8f4232bd2851354a64385a5249197f12574156491ccf5ce8 Red Hat Enterprise Linux for Power, little endian 9 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 ppc64le kpatch-patch-5_14_0-687_10_1-1-5.el9_8.ppc64le.rpm SHA-256: c28ef92dc8f21702bef2e74d05b95e11554152f10af408efaabbb256fc228827 kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.ppc64le.rpm SHA-256: fddc290d64f39aec0e1bcb40be63a1237e596d37c8f2dba1cce419489ba603cc kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.ppc64le.rpm SHA-256: bb7ea03aa6fe01497d54d1c2fce7706570fb76cf7817ba64e1eaba8e553f8122 Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 ppc64le kpatch-patch-5_14_0-687_10_1-1-5.el9_8.ppc64le.rpm SHA-256: c28ef92dc8f21702bef2e74d05b95e11554152f10af408efaabbb256fc228827 kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.ppc64le.rpm SHA-256: fddc290d64f39aec0e1bcb40be63a1237e596d37c8f2dba1cce419489ba603cc kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.ppc64le.rpm SHA-256: bb7ea03aa6fe01497d54d1c2fce7706570fb76cf7817ba64e1eaba8e553f8122 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 ppc64le kpatch-patch-5_14_0-687_10_1-1-5.el9_8.ppc64le.rpm SHA-256: c28ef92dc8f21702bef2e74d05b95e11554152f10af408efaabbb256fc228827 kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.ppc64le.rpm SHA-256: fddc290d64f39aec0e1bcb40be63a1237e596d37c8f2dba1cce419489ba603cc kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.ppc64le.rpm SHA-256: bb7ea03aa6fe01497d54d1c2fce7706570fb76cf7817ba64e1eaba8e553f8122 Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 x86_64 kpatch-patch-5_14_0-687_10_1-1-5.el9_8.x86_64.rpm SHA-256: ae1c646ad2fca43e5d8a9a22adc312c41d937e853d02131d5aea9bf9f3a0fbdc kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.x86_64.rpm SHA-256: 78e28b7fc2122099f5634c93b8e4c4243fb2f566f8e81defd7ee184388734341 kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.x86_64.rpm SHA-256: 9ac07ea91d6bd65c8f4232bd2851354a64385a5249197f12574156491ccf5ce8 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 x86_64 kpatch-patch-5_14_0-687_10_1-1-5.el9_8.x86_64.rpm SHA-256: ae1c646ad2fca43e5d8a9a22adc312c41d937e853d02131d5aea9bf9f3a0fbdc kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.x86_64.rpm SHA-256: 78e28b7fc2122099f5634c93b8e4c4243fb2f566f8e81defd7ee184388734341 kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.x86_64.rpm SHA-256: 9ac07ea91d6bd65c8f4232bd2851354a64385a5249197f12574156491ccf5ce8 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8 SRPM kpatch-patch-5_14_0-687_10_1-1-5.el9_8.src.rpm SHA-256: b7839f756564d92d172c90d8753d1fee3d6bd41c77f05444a98f41e11f895821 ppc64le kpatch-patch-5_14_0-687_10_1-1-5.el9_8.ppc64le.rpm SHA-256: c28ef92dc8f21702bef2e74d05b95e11554152f10af408efaabbb256fc228827 kpatch-patch-5_14_0-687_10_1-debuginfo-1-5.el9_8.ppc64le.rpm SHA-256: fddc290d64f39aec0e1bcb40be63a1237e596d37c8f2dba1cce419489ba603cc kpatch-patch-5_14_0-687_10_1-debugsource-1-5.el9_8.ppc64le.rpm SHA-256: bb7ea03aa6fe01497d54d1c2fce7706570fb76cf7817ba64e1eaba8e553f8122 The Red Hat security contact is secalert@redhat.com . 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