ALSA-2026:83159
Important: kernel-rt security, bug fix, and enhancement update
Published Oct 14, 2026 · updated Oct 15, 2026
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:AlmaLinux-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.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 14, 2026 · OSV.dev
Detected
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-a
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt fixed in 4.18.0-553.174.1.rt7.515.el8_10; kernel-rt-core fixed in 4.18.0-553.174.1.rt7.515.el8_10; kernel-rt-debug fixed in 4.18.0-553.174.1.rt7.515.el8_10; kernel-rt-debug-core fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-core fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-debug fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-debug-core fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-debug-devel fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-debug-modules fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-debug-modules-extra fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-devel fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-modules fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Fix available
kernel-rt-modules-extra fixed in 4.18.0-553.174.1.rt7.515.el8_10
Oct 15, 2026 · OSV.dev
Updated
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-a
Affected
- AlmaLinux:8 kernel-rt0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-core0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-debug0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-debug-core0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-debug-devel0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-debug-modules0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-debug-modules-extra0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-devel0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-modules0 → 4.18.0-553.174.1.rt7.515.el8_10
- AlmaLinux:8 kernel-rt-modules-extra0 → 4.18.0-553.174.1.rt7.515.el8_10