Summary
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (CVE-2026-31530)
* kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation (CVE-2025-54518)
* kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled (CVE-2026-64368)
* kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)
Bug Fix(es) and Enhancement(s):
* Kernel oops after increasing max number of mac addresses of a mlx5 VF [rhel-9.8.z] (JIRA:Rocky Linux-213036)
* Rocky Linux9.4 - s390/pkey: Check length in pkey_pckmo handler implementation [rhel-9.8.z] (JIRA:Rocky Linux-215578)
* Rocky Linux9.4 - s390/pkey: Check length in PKEY_VERIFYPROTK ioctl [rhel-9.8.z] (JIRA:Rocky Linux-215580)
* cifs: periodic IO errors when rename races with lease break (JIRA:Rocky Linux-192999)
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 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 9 | kernel | 0:5.14.0-687.38.1.el9_8 |
Vulnerabilities 4
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High 8.1
mm/slab: do not limit zeroing to orig_size when only red zoning is enabled
In the Linux kernel, the following vulnerability has been resolved: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled When init (zeroing) on allocation is requested, for kmalloc() we generally have to zero the full object size even if…
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High 7.8CVE-2026-64531 Public exploit
net: openvswitch: reject oversized nested action attrs
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nla_len field is u16. Commit a1e64addf3ff ("net: openvswitch: remove misbeh…
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High 7.3
Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker t…
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Unscored —
cxl/port: Fix use after free of parent_port in cxl_detach_ep()
In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix use after free of parent_port in cxl_detach_ep() cxl_detach_ep() is called during bottom-up removal when all CXL memory devices beneath a switch port have been removed. For each…