AlmaLinux version 8 recently released an important security advisory that covers three major system packages. The initial update targets the 389 Directory Server to patch a remote denial of service flaw that threatens to drain CPU and memory resources. Two subsequent notices address overlapping vulnerabilities across both the standard kernel and the real time variant, resolving use after free bugs and network driver race conditions.

ALSA-2026:26459: 389-ds:1.4 security update (Important)
ALSA-2026:27353: kernel security, bug fix, and enhancement update (Important)
ALSA-2026:27354: kernel-rt security, bug fix, and enhancement update (Important)

ALSA-2026:26459: 389-ds:1.4 security update (Important)

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AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-06-22

Summary:

389 Directory Server is an LDAP version 3 (LDAPv3) compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration.

Security Fix(es):

* 389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS) (CVE-2026-9064)

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.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/8/ALSA-2026-26459.html

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Kind regards,
AlmaLinux Team

ALSA-2026:27353: kernel security, bug fix, and enhancement update (Important)

Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.

AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-06-22

Summary:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
* kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)
* kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
* kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)
* kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145)
* kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)

Bug Fix(es) and Enhancement(s):

* AlmaLinux8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:AlmaLinux-178520)

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.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/8/ALSA-2026-27353.html

This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/.
Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org.

Kind regards,
AlmaLinux Team

ALSA-2026:27354: kernel-rt security, bug fix, and enhancement update (Important)

Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux.

AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-06-22

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: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
* kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)
* kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
* kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)
* kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145)
* kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)

Bug Fix(es) and Enhancement(s):

* AlmaLinux8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:AlmaLinux-178520)

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.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/8/ALSA-2026-27354.html

This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/.
Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org.

Kind regards,
AlmaLinux Team