Issued at: 2026-10-16
Updated at: 2026-10-16
Advisory content derived from Red Hat RHSA-2026:83159, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: kernel-rt security, bug fix, and enhancement update
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: Linux kernel: Denial of Service due to use-after-free in act_tunnel_key (CVE-2026-68377)
* kernel: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CVE-2026-72262)
* kernel: net/sched: cls_route: fix fastmap use-after-free on filter (CVE-2026-74583)
* kernel: ALSA: usx2y: bound the hwdep mmap fault offset (CVE-2026-74641)
* kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705)
* kernel: svcrdma: Validate Read chunk positions before reconstruction (CVE-2026-89526)
* kernel: NFSD: Prevent client use-after-free during blocked-lock reaping (CVE-2026-90036)
* kernel: svcrdma: Reject Write/Reply chunks with segcount 0 (CVE-2026-93228)
* kernel: md/raid5-ppl: fix use-after-free in ppl_do_flush() (CVE-2026-93262)
Bug Fix(es) and Enhancement(s):
* powerpc/pseries: pci - logic bug in SR-IOV enable (JIRA:Rocky Linux-240146)
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.