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: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events (CVE-2023-2235)
* kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation (CVE-2023-32233)
* Kernel: bluetooth: Unauthorized management command execution (CVE-2023-2002)
* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)
* kernel: i2c: out-of-bounds write in xgene_slimpro_i2c_xfer() (CVE-2023-2194)
* kernel: tls: race condition in do_tls_getsockopt may lead to use-after-free or NULL pointer dereference (CVE-2023-28466)
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.
Bug Fix(es):
* [RT] Single Node Openshift cluster becomes unreachable after running less than 2 hours (BZ#2186853)
* kernel-rt: update RT source tree to the latest AlmaLinux-9.2.z1 Batch (BZ#2188313)
Fixed packages 14
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | kernel-rt | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-core | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-debug | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-debug-core | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-debug-devel | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-debug-kvm | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-debug-modules | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-debug-modules-core | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-debug-modules-extra | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-devel | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-kvm | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-modules | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-modules-core | 5.14.0-284.18.1.rt14.303.el9_2 |
| AlmaLinux · 9 | kernel-rt-modules-extra | 5.14.0-284.18.1.rt14.303.el9_2 |
Vulnerabilities 6
-
High 7.8
Use-after-free in Linux kernel's Performance Events subsystem
A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remo…
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High 7.8
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused…
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High 7.0
do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race con…
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Medium 6.7
An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data->bl…
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Unscored —CVE-2023-2002 Public exploit
A vulnerability was found in the HCI sockets implementation due to a missing capability check in net/bluetooth/hci_sock…
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Unscored —
An out-of-bounds memory access flaw was found in the Linux kernel’s XFS file system in how a user restores an XFS image…
References
-
report
https://access.redhat.com/security/cve/CVE-2023-2002
-
report
https://access.redhat.com/security/cve/CVE-2023-2124
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report
https://access.redhat.com/security/cve/CVE-2023-2194
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report
https://access.redhat.com/security/cve/CVE-2023-2235
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report
https://access.redhat.com/security/cve/CVE-2023-28466
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report
https://access.redhat.com/security/cve/CVE-2023-32233
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report
https://bugzilla.redhat.com/2179000
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report
https://bugzilla.redhat.com/2187308
-
report
https://bugzilla.redhat.com/2187439
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report
https://bugzilla.redhat.com/2188396
-
report
https://bugzilla.redhat.com/2192589
-
report
https://bugzilla.redhat.com/2196105
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advisory
https://errata.almalinux.org/9/ALSA-2023-3708.html