Summary
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: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
* kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)
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.
Fixed packages 10
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | kernel-rt | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-core | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-debug | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-debug-core | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-debug-devel | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-debug-modules | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-debug-modules-extra | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-devel | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-modules | 4.18.0-553.72.1.rt7.413.el8_10 |
| AlmaLinux · 8 | kernel-rt-modules-extra | 4.18.0-553.72.1.rt7.413.el8_10 |
Vulnerabilities 2
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Critical 9.8
RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction
In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction The commit 59c68ac31e15 ("iw_cm: free cm_id resources on the last deref") simplified cm_id resource management by freeing…
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High 7.8
tipc: Fix use-after-free in tipc_conn_close().
In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_conn_close(). syzbot reported a null-ptr-deref in tipc_conn_close() during netns dismantle. [0] tipc_topsrv_stop() iterates tipc_net(net)->topsrv->conn_idr an…