Red Hat Product Errata RHSA-2026:27353 - Security Advisory Issued: 2026-06-19 Updated: 2026-06-19 RHSA-2026:27353 - Security Advisory Overview Updated Packages Synopsis Important: kernel security, bug fix, and enhancement 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 kernel is now available for Red Hat Enterprise Linux 8. 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 The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419) kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488) kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056) kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279) kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331) kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090) kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145) kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135) Bug Fix(es) and Enhancement(s): RHEL8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:RHEL-178520) 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 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 - 2457829 - CVE-2026-31419 kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service BZ - 2460619 - CVE-2026-31488 kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation BZ - 2464449 - CVE-2026-43056 kernel: net: mana: fix use-after-free in add_adev() error path BZ - 2467215 - CVE-2026-43279 kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing BZ - 2479492 - CVE-2026-46331 kernel: net/sched: act_pedit: extend the writable skb range per key BZ - 2481980 - CVE-2026-46090 kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop BZ - 2482581 - CVE-2026-46145 kernel: RDMA/mana: Validate rx_hash_key_len BZ - 2482654 - CVE-2026-46135 kernel: nvmet-tcp: fix race between ICReq handling and queue teardown CVEs CVE-2026-31419 CVE-2026-31488 CVE-2026-43056 CVE-2026-43279 CVE-2026-46090 CVE-2026-46135 CVE-2026-46145 CVE-2026-46331 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 8 SRPM kernel-4.18.0-553.136.1.el8_10.src.rpm SHA-256: c8df92d44fdc3c19bc9570065dcd88d2dc21694f8673cb02dcabcce787d2aa8c x86_64 bpftool-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 91681bc91d8405153223328d2b78170c2ea64140e1f3dc80e9353fea12e0e1a6 bpftool-debuginfo-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 529190a486d393c2aea214d42a3fe141cf5802c0f789c7a209db2f1402d962c0 kernel-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: e82b1ecc013320431be3fb4d52d6d39f6963219e9f006d921f7fdd9a542857ce kernel-abi-stablelists-4.18.0-553.136.1.el8_10.noarch.rpm SHA-256: 14663fa366421adb8d5d47409e4e10017bdc18d63dfda48966ee325bbbdb28e3 kernel-core-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 84d9f923c1d9dddd8dcedd3bfcaea23b86c9d459eb908dd0bf14622bc9c2dead kernel-cross-headers-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 42114da941b71a5b9fab63ba593c51dc95cf4ec4f9a418aa7a2df9e8c8fc9f5b kernel-debug-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 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perf-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 938276a85c66e1b220817645104b1065f0b74b93a02ceb492bc1844706b2ee30 perf-debuginfo-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 80c9bcf2781799b4ca934a5c0ebbec57f8d0e3670ab7a7a955124c5cc795ee06 python3-perf-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: 66015d9d9ac3d316ebf07e2b5d51e33886007938fea7842f5447e5defeb5382e python3-perf-debuginfo-4.18.0-553.136.1.el8_10.x86_64.rpm SHA-256: f4af2f66bfaabe5bbefd0c254da40750cf2fd5dfa4c881904b3e7ccd280fdaf0 Red Hat Enterprise Linux for IBM z Systems 8 SRPM kernel-4.18.0-553.136.1.el8_10.src.rpm SHA-256: c8df92d44fdc3c19bc9570065dcd88d2dc21694f8673cb02dcabcce787d2aa8c s390x bpftool-4.18.0-553.136.1.el8_10.s390x.rpm SHA-256: 265a9dfeefea4370ea2a0f6df15946ad93f100ba75c1a6fb6f09c6fcaf2c73b4 bpftool-debuginfo-4.18.0-553.136.1.el8_10.s390x.rpm SHA-256: 3ce87cb452575c40729e0a17358335f3cdf1f5706fe679a40b00c93e5d18763c kernel-4.18.0-553.136.1.el8_10.s390x.rpm SHA-256: 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