[ALSA-2026:70403] Important: kernel-rt security, bug fix, and enhancement update
Type:
security
Severity:
important
Release date:
2026-09-23
Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964) * kernel: Linux kernel Bluetooth: Denial of Service via race condition in hidp_session_thread (CVE-2023-54120) * kernel: Bluetooth: L2CAP: Fix potential user-after-free (CVE-2023-54214) * kernel: Bluetooth: btusb: revert use of devm_kzalloc in btusb (CVE-2025-71082) * kernel: Bluetooth: SMP: force responder MITM requirements before building the pairing response (CVE-2026-43334) * kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry (CVE-2026-45894) * kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043) * kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133) * kernel: Bluetooth: serialize accept_q access (CVE-2026-52918) * kernel: dm cache policy smq: fix missing locks in invalidating cache blocks (CVE-2026-53062) * kernel: iommu/amd: Fix clone_alias() to use the original device's devid (CVE-2026-53053) * kernel: Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() (CVE-2026-53256) * kernel: Bluetooth: RFCOMM: validate skb length in MCC handlers (CVE-2026-53254) * kernel: keys: Pin request_key_auth payload in instantiate paths (CVE-2026-63823) * kernel: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp (CVE-2026-63975) * kernel: Bluetooth: HIDP: fix missing length checks in hidp_input_report() (CVE-2026-63947) * kernel: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path (CVE-2026-64534) * kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582) * kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads (CVE-2026-68293) * kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios (CVE-2026-68188) Bug Fix(es) and Enhancement(s): * Intel IOMMU: possible circular locking dependency (JIRA:AlmaLinux-243217) * xfs: repeated xfs_trans_cancel called from xfs_iomap_write_direct (JIRA:AlmaLinux-251578) 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.
Updated packages listed below:
Architecture Package Checksum
x86_64 kernel-rt-modules-extra-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm 124acd95b4bda0740a5ad7d3123123660c435f8f4fc8310a56cf02b4a6cbcd46
x86_64 kernel-rt-core-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm 2c3b30f333200fcf817e3b2e0e6b36e708b1b93aac67a5752d3620caebf0ec5f
x86_64 kernel-rt-debug-modules-extra-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm 3af29a88454b0a63062db6f93c1502cca8b5b85799935737f966a06a33e6bc8a
x86_64 kernel-rt-debug-devel-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm 45961468e27747a6bfab158416345ddb5e71dd79dd2d7374616d6dd856e7ccac
x86_64 kernel-rt-debug-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm a23220c3ee5a5876ee01dd49264e70b1ce79960ac8de0bdb17a9b3c1f26bc8ff
x86_64 kernel-rt-debug-modules-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm b9578f71816286b7d88511fcd1ebd5619b1f14bc7acc95ed3b22f0613f61170d
x86_64 kernel-rt-devel-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm b9a82d28ff6e95b26d3b980c1e6a5db735c28f5c095aedb4583b48e8e14c0871
x86_64 kernel-rt-modules-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm e7e089c93dc1d4fa9ddf6d3d6cd4c1f4885b17326090dca1aef7bbf0432e8e1b
x86_64 kernel-rt-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm f8e2e91d95f59301aa6358f429baf54a3c64aed602b32f39f4ea07945b3939d0
x86_64 kernel-rt-debug-core-4.18.0-553.166.1.rt7.507.el8_10.x86_64.rpm fa4613121f2ab77caecbf30eab9ded17a7faafe3db586ba65619bcee1f722b0f
Notes:
This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.