Red Hat Product Errata RHSA-2026:52765 - Security Advisory Issued: 2026-08-10 Updated: 2026-08-10 RHSA-2026:52765 - Security Advisory Overview Updated Packages Synopsis Moderate: kernel security update Type/Severity Security Advisory: Moderate Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): kernel: iio: event: Fix event FIFO reset race (CVE-2026-64496) 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. Red Hat recommends treating all kernel errata as security-relevant. Given the kernel's fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers' overall security posture. Because of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat's CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available. Affected Products Red Hat Enterprise Linux for x86_64 8 x86_64 Red Hat Enterprise Linux for IBM z Systems 8 s390x Red Hat Enterprise Linux for Power, little endian 8 ppc64le Red Hat Enterprise Linux for ARM 64 8 aarch64 Red Hat CodeReady Linux Builder for x86_64 8 x86_64 Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le Red Hat CodeReady Linux Builder for ARM 64 8 aarch64 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x Fixes BZ - 2507193 - CVE-2026-64496 kernel: iio: event: Fix event FIFO reset race CVEs CVE-2026-64496 References https://access.redhat.com/security/updates/classification/#moderate Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 8 SRPM kernel-4.18.0-553.154.1.el8_10.src.rpm SHA-256: 6f9bbe50a0396be26a58d90601e31d0f5acb9130bc40bb1a6a3b8c2b75be4ab5 x86_64 bpftool-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 82d78adcbf75a1c70c031ec46ac4ee692a21bb5f53759651cdbebaa01424c3cc bpftool-debuginfo-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 889365cd7399bf90aade78ff8c71ddf1d8b47c45389b516b16458f7d5bf9c2ca kernel-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: b1c184260e0fb2d44fd04d74a0c2fbe432c99a71ceb3b60fc96ab128e0d896fd kernel-abi-stablelists-4.18.0-553.154.1.el8_10.noarch.rpm SHA-256: c17bd8fd9c856f180b699538ceb813a56312dc9fdc6ca84ef0b3828efb64ee90 kernel-core-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 056f49eff813ab26929185e1b3c59ab601c1554aec61c594431dd21ab59fff8c kernel-cross-headers-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 9974929a8ed905e2e79816db97478d077c73d724b4a5d79669fece61495d0264 kernel-debug-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 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kernel-devel-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 322c46c07529812c3098f5abddbe4313c36b45bb3d527e6af30f53359849b9e0 kernel-doc-4.18.0-553.154.1.el8_10.noarch.rpm SHA-256: 00f0aaf7ab0f7d2411798ba3d2a3499a246b475b150171e70e8d1a437a0cf995 kernel-headers-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 500f166cd5f0fe0ed498f80394259055673625d46f2d79898da7a85ab0b1237d kernel-modules-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: b54fd2aa8959ad78a37f38cbf96d20318ee4ac55b99a71b529e03f733b838ecb kernel-modules-extra-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: b827a37ba55455e332fe0491cb781222f511b90cb8fdd4628a2318de24cba54e kernel-tools-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 30fcb8ed1f7039c64d528b5090837d642e80f4b59b33e3c81000105e61f822a5 kernel-tools-debuginfo-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 5cbfc2d8690638d9727053fe1f37fc3e303cd8e088e80e8e316fa629d370800b kernel-tools-libs-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 080eefa139793a17177aecb3c6b57fa28f83e39822d15379c312dc35ac507d79 perf-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: e738aff218d2835a475e4e812454696da42cb4e1fdfbf04d45aabe4a1d6d1305 perf-debuginfo-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 97701238110c9e06314b49d0f70cf29127a97e2ce2b42a25aaf59117691c0c74 python3-perf-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 855261b1d0ccf2182cb54e816fa4e14bdc5493ed5c7dde3c8252cc82d0edeae3 python3-perf-debuginfo-4.18.0-553.154.1.el8_10.x86_64.rpm SHA-256: 7db33825388a7d54079d0068814bb5a78328773b6e6037cf9a9b3c53e534d28d Red Hat Enterprise Linux for IBM z Systems 8 SRPM kernel-4.18.0-553.154.1.el8_10.src.rpm SHA-256: 6f9bbe50a0396be26a58d90601e31d0f5acb9130bc40bb1a6a3b8c2b75be4ab5 s390x bpftool-4.18.0-553.154.1.el8_10.s390x.rpm SHA-256: 1ff0e815a466bf8b98bf3d3f4b349a3c30a8727cc24dc552ab78f7d7a106d4ea bpftool-debuginfo-4.18.0-553.154.1.el8_10.s390x.rpm SHA-256: cc28aec30ce6f212a0df69988866bf2c6b6ba39685a0dc9216f078dccc31b6e1 kernel-4.18.0-553.154.1.el8_10.s390x.rpm SHA-256: 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